In most MIMO systems, the family of waterfall error curves, calculated at different spectral efficiencies, is asymptotically parallel at high SNR. In other words, most MIMO systems exhibit a single diversity value for all fixed rates. The MIMO MMSE receiver does not follow this pattern and exhibits a varying diversity ...Download Now
A Mobile Ad hoc NETwork (MANET) is a group of mobile nodes that form a multi-hop wireless network. The topology of the network can change randomly due to unpredictable mobility of nodes and propagation characteristics. Previously, it was assumed that the nodes in the network were assigned IP addresses a ...Download Now
The authors address joint estimation of frequency offsets and channel responses in OFDMA uplink. A cyclically equal-spaced, equal-energy interleaved pilot preamble is proposed by which two iterative estimators are developed. In the first estimator, they develop a modified SAGE (Space Alternating Generalized Expectation-maximization) method by incorporating multiuser interference cancellation in ...Download Now
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