Aggregated and Per-Source Performance Modeling for Broadband Wireless Channels
Modern broadband wireless systems, such as IEEE 802.16, are designed to multiplex a number of traffic streams into a single bundle for further transmission over the wireless medium. Since these traffic streams can be heterogenous in nature and have different Quality of Service (QoS) requirements, their performance at the wireless multiplexing system is of special interest. QoS-aware technologies such as differentiated services, MultiProtocol Label Switching (MPLS), or IEEE 802.16 differentiate between traffic classes producing traffic aggregates consisting of flows with similar performance requirements. When multiplexed sources are truly homogenous in nature, delay and loss parameters of individual sources can be obtained from performance metrics of aggregated traffic.