McMaster University

Displaying 1-34 of 34 results

  • White Papers // May 2012

    Information Rates of Solar Blind Non-Line-of-Sight Ultra-Violet Channels With Binary-Input

    There is recent interest to establish Non-Line-Of-Sight (NLOS) links in the solar-blind UltraViolet (UV) region for outdoor optical wireless communications. A new channel model is proposed based on the propagation and detection statistics of the channel. Unlike previous work, in this paper, the performance of NLOS UV communication systems is...

    Provided By McMaster University

  • White Papers // May 2012

    Diversity Gain for Near-Field MISO Atmospheric Optical Communications

    In this paper, the performance of a Multiple-Input/Single-Output (MISO) Free-Space Optical (FSO) systems is studied through an analytical approach which more accurately models the atmospheric channel. The diversity gain is evaluated based on measures determined by up to second-order statistics of the received power. The numerical results demonstrate the effects...

    Provided By McMaster University

  • White Papers // May 2012

    Opportunistic Scheduling in a Bidirectional Communication Link With Relaying

    In this paper, the authors study transmission scheduling in a bidirectional communication link, where two end nodes are communicating with each other through a relay node. Each of the two end nodes injects data into a separate buffer at the relay node, which can either forward the data from one...

    Provided By McMaster University

  • White Papers // Mar 2012

    Secondary User VoIP Capacity in Opportunistic Spectrum Access Networks With Friendly Scheduling

    In conventional cognitive radio networks it is usually assumed that the primary network remains unchanged. The onus is then placed on the secondary network users to make the best use of any residual radio capacity. In some situations however, the primary network operator may wish to accommodate secondary user access....

    Provided By McMaster University

  • White Papers // Mar 2012

    Achieving Minimum-Routing-Cost Maximum-Flows in Infrastructure Wireless Mesh Networks

    A multi-commodity Minimum-Cost Maximum-Flow algorithm for routing multiple unicast traffic flows in infrastructure wireless mesh networks, represented as commodities to be routed in an undirected or directed graph, is presented. The routing-cost per edge can be any metric, i.e., a delay, a SNR, etc. To minimize resource-usage and transmission power,...

    Provided By McMaster University

  • White Papers // Feb 2012

    Layered Multicast with Inter-layer Network Coding for Multimedia Streaming

    Multirate multicast is a powerful methodology of multimedia communication in heterogenous networks. A variant of multirate multicast motivated by scalable multimedia streaming is layered multicast, where the transmitted signal is presented in successive data layers. With recent advances of network coding theory, many layered multicast schemes using network coding have...

    Provided By McMaster University

  • White Papers // Jul 2011

    On Investment-Consumption With Regime-Switching

    In a continuous time stochastic economy, this paper considers the problem of consumption and investment in a financial market in which the representative investor exhibits a change in the discount rate. The investment opportunities are a stock and a riskless account. The market coefficients and discount factor switches according to...

    Provided By McMaster University

  • White Papers // Jun 2011

    From Growth To Cycles Through Beliefs

    The author presents a theoretical model where the economy endogenously adopts the technological ideas of a slowly evolving technological frontier, and show that the presence of a "Technological gap" between unadopted ideas and current productivity can lead to multiple equilibria and therefore the possibility that changes in beliefs can be...

    Provided By McMaster University

  • White Papers // Feb 2011

    Utility Indifference Pricing: A Time Consistent Approach

    This paper considers the optimal portfolio selection problem in a dynamic multi-period stochastic framework with regime switching. The risk preferences are of exponential (CARA) type with an absolute coefficient of risk aversion which changes with the regime. The market model is incomplete and there are two risky assets: one tradable...

    Provided By McMaster University

  • White Papers // Feb 2011

    Existence And Magnitude Of Health-Related Externalities: Evidence From A Choice Experiment

    Health-related external benefits are of potentially large importance for public policy. This paper investigates health-related external benefits using a stated-preference discrete-choice experiment framed in a health care context and including choice scenarios defined by six attributes related to the a recipient and the recipient's condition: communicability, severity, medical necessity, relationship...

    Provided By McMaster University

  • White Papers // Feb 2011

    Statistical Inference For Time-changed Brownian Motion Credit Risk Models

    The authors consider structural credit modeling in the important special case where the log-leverage ratio of the firm is a Time-Changed Brownian Motion (TCBM) with the time-change taken to be an independent increasing process. Following the approach of Black and Cox, one defines the time of default to be the...

    Provided By McMaster University

  • White Papers // Oct 2010

    Age Of Pension Eligibility, Gains In Life Expectancy, And Social Policy

    Canadians are living longer and retiring younger. When combined with the aging of the baby boom generation, which means that, the "Inactive" portion of the population is increasing and there are concerns about possibly large increases in the burden of support on those who are younger. The authors model the...

    Provided By McMaster University

  • White Papers // Oct 2010

    Comparing Racial And Immigrant Health Status And Health Care Access In Later Life In Canada And The United States

    Little comparative research exists on health experiences and conditions of minority groups in Canada and the United States, despite both countries having a racially diverse population with a significant proportion of immigrants. This paper explores race and immigrant disparities in health and health care access across the two countries. The...

    Provided By McMaster University

  • White Papers // Aug 2010

    Specification of Agent Explicit Knowledge in Cryptographic Protocols

    Cryptographic protocols are widely used in various applications to provide secure communications. They are usually represented as communicating agents that send and receive messages. These agents use their knowledge to exchange information and communicate with other agents involved in the protocol. Agent knowledge can be partitioned into explicit knowledge and...

    Provided By McMaster University

  • White Papers // Jul 2010

    Organizational Capital And The International Co-Movement Of Investment

    A productivity shock leads to a large international transfer of capital and negative co-movement of investment in the typical two-country real business cycle model. Most recent models that attempt to reduce or remove this transfer produce unrealistically low investment volatility. The authors show that adding organizational capital to the technological...

    Provided By McMaster University

  • White Papers // Jun 2010

    Willingness-To-Pay For Parallel Private Health Insurance: Evidence From A Laboratory Experiment

    Debate over the effects of public versus private health care financing has been, and continues to be, active in both academic outlets and policy circles. Theoretical literature on parallel health care financing is often built on untested behavioural assumptions and the empirical evidence generally depends upon the institutional details of...

    Provided By McMaster University

  • White Papers // Jun 2010

    Retirement Decisions Of People With Disabilities: Voluntary Or Involuntary

    While some retirement is welcomed and on?]time, other retirements are involuntary or forced due to the loss of a job, an early retirement incentive, a health problem, mandatory retirement, lack of control with too many job strains, or to provide care to a family member. An analysis of the 2002...

    Provided By McMaster University

  • White Papers // May 2010

    Understanding The Outcomes Of Older Job Losers

    The authors use an unusually rich Canadian survey to examine how post-job-loss behaviour and outcomes vary with age of the job loser. They find that older job losers experience greater post-displacement joblessness, and are less likely to return quickly to satisfactory employment. They show that this apparent age effect is...

    Provided By McMaster University

  • White Papers // Feb 2010

    LDPC Code Design for Asynchronous Slepian-Wolf Coding

    The authors consider asynchronous Slepian-Wolf coding where the two encoders may not have completely accurate timing information to synchronize their individual block code boundaries, and propose LDPC code design in this scenario. A new information-theoretic coding scheme based on source splitting is provided, which can achieve the entire asynchronous Slepian-Wolf...

    Provided By McMaster University

  • White Papers // Feb 2010

    Public And Private Health Care Financing With Alternate Public Rationing

    The authors develop a model to analyze parallel public and private health care financing under two alternative public sector rationing rules: needs-based rationing and random rationing. Individuals vary in income and severity of illness. There is a limited supply of health care resources used to treat individuals, causing some individuals...

    Provided By McMaster University

  • White Papers // Dec 2009

    Income Replacement In Retirement: Longitudinal Evidence From Income Tax Records

    The authors analyse a large longitudinal data file to determine who has retired and to assess how successful they are in maintaining their incomes after retirement. The main conclusions are as follows. First, in the two years immediately after retirement the after-tax income replacement ratios average about two-thirds when calculated...

    Provided By McMaster University

  • White Papers // Nov 2009

    The Capacity Region of a Product of Two Unmatched Gaussian Broadcast Channels With Three Particular Messages and a Common Message

    This paper considers a Gaussian broadcast channel with two unmatched degraded components, three particular messages, and a common message that is intended for all three receivers. It is shown that for this channel superposition coding and Gaussian signalling is sufficient to achieve every point in the capacity region. In a...

    Provided By McMaster University

  • White Papers // Oct 2009

    Remote Vector Gaussian Source Coding with Decoder Side Information Under Mutual Information and Distortion Constraints

    The problem under the first kind of constraint is motivated by Multiple-Input Multiple-Output (MIMO) relay channels with an oblivious transmitter and a relay connected to the receiver through a dedicated link, while for the second case, it is motivated by source coding with decoder side information where the sensor observation...

    Provided By McMaster University

  • White Papers // Oct 2009

    The Equivalence Between Slepian-Wolf Coding and Channel Coding Under Density Evolution

    The authors have studied the problem of designing SW codes by leveraging its connection to designing LDPC channel codes. Specifically they have shown that, under density evolution, each SW coding problem is equivalent to a channel coding problem for a binary-input output-symmetric channel. They consider Slepian-Wolf code design based on...

    Provided By McMaster University

  • White Papers // Sep 2009

    Formation Of Heterogeneous Skills And Wage Growth

    This paper examines how primitive skills associated with occupations are formed and rewarded in the labor market over the careers of men. The objective task complexity measurement from the Dictionary of Occupational Titles enables a more direct look into the primitive skills of workers. The author shows that the optimal...

    Provided By McMaster University

  • White Papers // Sep 2009

    Population Aging, Older Workers, And Canada~s Labour Force

    The Expert Panel on Older Workers made recommendations designed to increase the labour force participation of older workers. The authors explore the implications that higher rates of older-worker participation would have for the overall size and age composition of the labour force, for the productive capacity of the economy, and...

    Provided By McMaster University

  • White Papers // Sep 2009

    On the Duality Between Slepian-Wolf Coding and Channel Coding Under Mismatched Decoding

    In this paper, Slepian - Wolf coding with a mismatched decoding metric is studied. Two different dualities between Slepian - Wolf coding and channel coding under mismatched decoding are established. These two dualities provide a systematic framework for comparing linear Slepian - Wolf codes, nonlinear Slepian - Wolf codes, and...

    Provided By McMaster University

  • White Papers // Sep 2009

    Patterns Of Retirement As Reflected In Income Tax Records For Older Workers

    If retirement means a substantial and sustained reduction in the time spent working for pay or profit, measurement requires a definition of substantial and sufficient observations of the same individuals to determine whether a transition from "Working" to "Retired" status has occurred. Using the Statistics Canada Longitudinal Administrative Databank, a...

    Provided By McMaster University

  • White Papers // Sep 2009

    Rate Region of Gaussian Multiple Description Coding with Individual and Central Distortion Constraints

    Multiple description coding is a quantization technique developed for multimedia transmission through unreliable links. The rate region of Gaussian multiple description coding with individual and central distortion constraints is completely characterized. Specifically, a lower bound and an upper bound are derived for each supporting hyperplane of the rate region, where...

    Provided By McMaster University

  • White Papers // Aug 2009

    The Value Of Fixed-reimbursement Healthcare Insurance- Evidence From Cancer Patients In Ontario, Canada

    Critical Illness Insurance (CII) is a fixed-reimbursement scheme conditioned on the event of a loss, not the size of the loss. The authors investigate demand for CII. Consumers will be willing to purchase CII depending on their degree of risk aversion to the cost of treating illness, their forgone income,...

    Provided By McMaster University

  • White Papers // Jun 2009

    Multiple Description Coding for Stationary Gaussian Sources

    The authors consider the problem of multiple descriptions coding for stationary Gaussian sources under the squared error distortion measure. The rate region is characterized for the description case. It is shown that each supporting line of the rate region is achievable with a transform lattice quantization scheme. They show the...

    Provided By McMaster University

  • White Papers // Jun 2009

    The Role Of Child Health And Economic Status In Educational, Health And Labour Market Outcomes In Young Adulthood

    The Ontario Child Health Study provides the first opportunity in Canada to assess directly the relationship between socio-economic and health status in childhood and levels of completed schooling, health status and labour market success in young adulthood. The authors find that childhood health problems are negatively associated with educational attainment,...

    Provided By McMaster University

  • White Papers // Apr 2009

    Income And The Demand For Complementary Health Insurance In France

    This paper examines the demand for Complementary Health Insurance (CHI) in the non-group market in France and the reasons why the near poor seem price insensitive. First the authors develop a theoretical model based on a simple trade-off between two goods: CHI and a composite good reflecting all other consumptions....

    Provided By McMaster University

  • White Papers // Mar 2009

    New Evidence On Taxes And Portfolio Choice

    Identifying the effect of differential taxation on portfolio allocation requires exogenous variation in marginal tax rates. Marginal tax rates vary with income, but income surely affects portfolio choice directly. In systems of individual taxation - like Canada's - couples with the same household income can face different effective tax rates...

    Provided By McMaster University

  • White Papers // Feb 2012

    Layered Multicast with Inter-layer Network Coding for Multimedia Streaming

    Multirate multicast is a powerful methodology of multimedia communication in heterogenous networks. A variant of multirate multicast motivated by scalable multimedia streaming is layered multicast, where the transmitted signal is presented in successive data layers. With recent advances of network coding theory, many layered multicast schemes using network coding have...

    Provided By McMaster University

  • White Papers // Feb 2010

    LDPC Code Design for Asynchronous Slepian-Wolf Coding

    The authors consider asynchronous Slepian-Wolf coding where the two encoders may not have completely accurate timing information to synchronize their individual block code boundaries, and propose LDPC code design in this scenario. A new information-theoretic coding scheme based on source splitting is provided, which can achieve the entire asynchronous Slepian-Wolf...

    Provided By McMaster University

  • White Papers // Jun 2010

    Willingness-To-Pay For Parallel Private Health Insurance: Evidence From A Laboratory Experiment

    Debate over the effects of public versus private health care financing has been, and continues to be, active in both academic outlets and policy circles. Theoretical literature on parallel health care financing is often built on untested behavioural assumptions and the empirical evidence generally depends upon the institutional details of...

    Provided By McMaster University

  • White Papers // Oct 2009

    Remote Vector Gaussian Source Coding with Decoder Side Information Under Mutual Information and Distortion Constraints

    The problem under the first kind of constraint is motivated by Multiple-Input Multiple-Output (MIMO) relay channels with an oblivious transmitter and a relay connected to the receiver through a dedicated link, while for the second case, it is motivated by source coding with decoder side information where the sensor observation...

    Provided By McMaster University

  • White Papers // Sep 2009

    Population Aging, Older Workers, And Canada~s Labour Force

    The Expert Panel on Older Workers made recommendations designed to increase the labour force participation of older workers. The authors explore the implications that higher rates of older-worker participation would have for the overall size and age composition of the labour force, for the productive capacity of the economy, and...

    Provided By McMaster University

  • White Papers // Sep 2009

    On the Duality Between Slepian-Wolf Coding and Channel Coding Under Mismatched Decoding

    In this paper, Slepian - Wolf coding with a mismatched decoding metric is studied. Two different dualities between Slepian - Wolf coding and channel coding under mismatched decoding are established. These two dualities provide a systematic framework for comparing linear Slepian - Wolf codes, nonlinear Slepian - Wolf codes, and...

    Provided By McMaster University

  • White Papers // Sep 2009

    Patterns Of Retirement As Reflected In Income Tax Records For Older Workers

    If retirement means a substantial and sustained reduction in the time spent working for pay or profit, measurement requires a definition of substantial and sufficient observations of the same individuals to determine whether a transition from "Working" to "Retired" status has occurred. Using the Statistics Canada Longitudinal Administrative Databank, a...

    Provided By McMaster University

  • White Papers // Sep 2009

    Rate Region of Gaussian Multiple Description Coding with Individual and Central Distortion Constraints

    Multiple description coding is a quantization technique developed for multimedia transmission through unreliable links. The rate region of Gaussian multiple description coding with individual and central distortion constraints is completely characterized. Specifically, a lower bound and an upper bound are derived for each supporting hyperplane of the rate region, where...

    Provided By McMaster University

  • White Papers // Dec 2009

    Income Replacement In Retirement: Longitudinal Evidence From Income Tax Records

    The authors analyse a large longitudinal data file to determine who has retired and to assess how successful they are in maintaining their incomes after retirement. The main conclusions are as follows. First, in the two years immediately after retirement the after-tax income replacement ratios average about two-thirds when calculated...

    Provided By McMaster University

  • White Papers // Jun 2009

    Multiple Description Coding for Stationary Gaussian Sources

    The authors consider the problem of multiple descriptions coding for stationary Gaussian sources under the squared error distortion measure. The rate region is characterized for the description case. It is shown that each supporting line of the rate region is achievable with a transform lattice quantization scheme. They show the...

    Provided By McMaster University

  • White Papers // May 2010

    Understanding The Outcomes Of Older Job Losers

    The authors use an unusually rich Canadian survey to examine how post-job-loss behaviour and outcomes vary with age of the job loser. They find that older job losers experience greater post-displacement joblessness, and are less likely to return quickly to satisfactory employment. They show that this apparent age effect is...

    Provided By McMaster University

  • White Papers // Jun 2010

    Retirement Decisions Of People With Disabilities: Voluntary Or Involuntary

    While some retirement is welcomed and on?]time, other retirements are involuntary or forced due to the loss of a job, an early retirement incentive, a health problem, mandatory retirement, lack of control with too many job strains, or to provide care to a family member. An analysis of the 2002...

    Provided By McMaster University

  • White Papers // Oct 2009

    The Equivalence Between Slepian-Wolf Coding and Channel Coding Under Density Evolution

    The authors have studied the problem of designing SW codes by leveraging its connection to designing LDPC channel codes. Specifically they have shown that, under density evolution, each SW coding problem is equivalent to a channel coding problem for a binary-input output-symmetric channel. They consider Slepian-Wolf code design based on...

    Provided By McMaster University

  • White Papers // Oct 2010

    Age Of Pension Eligibility, Gains In Life Expectancy, And Social Policy

    Canadians are living longer and retiring younger. When combined with the aging of the baby boom generation, which means that, the "Inactive" portion of the population is increasing and there are concerns about possibly large increases in the burden of support on those who are younger. The authors model the...

    Provided By McMaster University

  • White Papers // Jun 2009

    The Role Of Child Health And Economic Status In Educational, Health And Labour Market Outcomes In Young Adulthood

    The Ontario Child Health Study provides the first opportunity in Canada to assess directly the relationship between socio-economic and health status in childhood and levels of completed schooling, health status and labour market success in young adulthood. The authors find that childhood health problems are negatively associated with educational attainment,...

    Provided By McMaster University

  • White Papers // Jul 2010

    Organizational Capital And The International Co-Movement Of Investment

    A productivity shock leads to a large international transfer of capital and negative co-movement of investment in the typical two-country real business cycle model. Most recent models that attempt to reduce or remove this transfer produce unrealistically low investment volatility. The authors show that adding organizational capital to the technological...

    Provided By McMaster University

  • White Papers // Feb 2011

    Existence And Magnitude Of Health-Related Externalities: Evidence From A Choice Experiment

    Health-related external benefits are of potentially large importance for public policy. This paper investigates health-related external benefits using a stated-preference discrete-choice experiment framed in a health care context and including choice scenarios defined by six attributes related to the a recipient and the recipient's condition: communicability, severity, medical necessity, relationship...

    Provided By McMaster University

  • White Papers // Mar 2009

    New Evidence On Taxes And Portfolio Choice

    Identifying the effect of differential taxation on portfolio allocation requires exogenous variation in marginal tax rates. Marginal tax rates vary with income, but income surely affects portfolio choice directly. In systems of individual taxation - like Canada's - couples with the same household income can face different effective tax rates...

    Provided By McMaster University

  • White Papers // Nov 2009

    The Capacity Region of a Product of Two Unmatched Gaussian Broadcast Channels With Three Particular Messages and a Common Message

    This paper considers a Gaussian broadcast channel with two unmatched degraded components, three particular messages, and a common message that is intended for all three receivers. It is shown that for this channel superposition coding and Gaussian signalling is sufficient to achieve every point in the capacity region. In a...

    Provided By McMaster University

  • White Papers // Aug 2010

    Specification of Agent Explicit Knowledge in Cryptographic Protocols

    Cryptographic protocols are widely used in various applications to provide secure communications. They are usually represented as communicating agents that send and receive messages. These agents use their knowledge to exchange information and communicate with other agents involved in the protocol. Agent knowledge can be partitioned into explicit knowledge and...

    Provided By McMaster University

  • White Papers // Feb 2011

    Utility Indifference Pricing: A Time Consistent Approach

    This paper considers the optimal portfolio selection problem in a dynamic multi-period stochastic framework with regime switching. The risk preferences are of exponential (CARA) type with an absolute coefficient of risk aversion which changes with the regime. The market model is incomplete and there are two risky assets: one tradable...

    Provided By McMaster University

  • White Papers // Feb 2011

    Statistical Inference For Time-changed Brownian Motion Credit Risk Models

    The authors consider structural credit modeling in the important special case where the log-leverage ratio of the firm is a Time-Changed Brownian Motion (TCBM) with the time-change taken to be an independent increasing process. Following the approach of Black and Cox, one defines the time of default to be the...

    Provided By McMaster University

  • White Papers // Oct 2010

    Comparing Racial And Immigrant Health Status And Health Care Access In Later Life In Canada And The United States

    Little comparative research exists on health experiences and conditions of minority groups in Canada and the United States, despite both countries having a racially diverse population with a significant proportion of immigrants. This paper explores race and immigrant disparities in health and health care access across the two countries. The...

    Provided By McMaster University

  • White Papers // Jun 2011

    From Growth To Cycles Through Beliefs

    The author presents a theoretical model where the economy endogenously adopts the technological ideas of a slowly evolving technological frontier, and show that the presence of a "Technological gap" between unadopted ideas and current productivity can lead to multiple equilibria and therefore the possibility that changes in beliefs can be...

    Provided By McMaster University

  • White Papers // Sep 2009

    Formation Of Heterogeneous Skills And Wage Growth

    This paper examines how primitive skills associated with occupations are formed and rewarded in the labor market over the careers of men. The objective task complexity measurement from the Dictionary of Occupational Titles enables a more direct look into the primitive skills of workers. The author shows that the optimal...

    Provided By McMaster University

  • White Papers // Apr 2009

    Income And The Demand For Complementary Health Insurance In France

    This paper examines the demand for Complementary Health Insurance (CHI) in the non-group market in France and the reasons why the near poor seem price insensitive. First the authors develop a theoretical model based on a simple trade-off between two goods: CHI and a composite good reflecting all other consumptions....

    Provided By McMaster University

  • White Papers // Aug 2009

    The Value Of Fixed-reimbursement Healthcare Insurance- Evidence From Cancer Patients In Ontario, Canada

    Critical Illness Insurance (CII) is a fixed-reimbursement scheme conditioned on the event of a loss, not the size of the loss. The authors investigate demand for CII. Consumers will be willing to purchase CII depending on their degree of risk aversion to the cost of treating illness, their forgone income,...

    Provided By McMaster University

  • White Papers // Feb 2010

    Public And Private Health Care Financing With Alternate Public Rationing

    The authors develop a model to analyze parallel public and private health care financing under two alternative public sector rationing rules: needs-based rationing and random rationing. Individuals vary in income and severity of illness. There is a limited supply of health care resources used to treat individuals, causing some individuals...

    Provided By McMaster University

  • White Papers // Jul 2011

    On Investment-Consumption With Regime-Switching

    In a continuous time stochastic economy, this paper considers the problem of consumption and investment in a financial market in which the representative investor exhibits a change in the discount rate. The investment opportunities are a stock and a riskless account. The market coefficients and discount factor switches according to...

    Provided By McMaster University

  • White Papers // May 2012

    Information Rates of Solar Blind Non-Line-of-Sight Ultra-Violet Channels With Binary-Input

    There is recent interest to establish Non-Line-Of-Sight (NLOS) links in the solar-blind UltraViolet (UV) region for outdoor optical wireless communications. A new channel model is proposed based on the propagation and detection statistics of the channel. Unlike previous work, in this paper, the performance of NLOS UV communication systems is...

    Provided By McMaster University

  • White Papers // May 2012

    Diversity Gain for Near-Field MISO Atmospheric Optical Communications

    In this paper, the performance of a Multiple-Input/Single-Output (MISO) Free-Space Optical (FSO) systems is studied through an analytical approach which more accurately models the atmospheric channel. The diversity gain is evaluated based on measures determined by up to second-order statistics of the received power. The numerical results demonstrate the effects...

    Provided By McMaster University

  • White Papers // May 2012

    Opportunistic Scheduling in a Bidirectional Communication Link With Relaying

    In this paper, the authors study transmission scheduling in a bidirectional communication link, where two end nodes are communicating with each other through a relay node. Each of the two end nodes injects data into a separate buffer at the relay node, which can either forward the data from one...

    Provided By McMaster University

  • White Papers // Mar 2012

    Secondary User VoIP Capacity in Opportunistic Spectrum Access Networks With Friendly Scheduling

    In conventional cognitive radio networks it is usually assumed that the primary network remains unchanged. The onus is then placed on the secondary network users to make the best use of any residual radio capacity. In some situations however, the primary network operator may wish to accommodate secondary user access....

    Provided By McMaster University

  • White Papers // Mar 2012

    Achieving Minimum-Routing-Cost Maximum-Flows in Infrastructure Wireless Mesh Networks

    A multi-commodity Minimum-Cost Maximum-Flow algorithm for routing multiple unicast traffic flows in infrastructure wireless mesh networks, represented as commodities to be routed in an undirected or directed graph, is presented. The routing-cost per edge can be any metric, i.e., a delay, a SNR, etc. To minimize resource-usage and transmission power,...

    Provided By McMaster University