Cooperative diversity in wireless networks: Efficient protocols and outage behavior
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Cites background or methods from "Cooperative diversity in wireless n..."
...Both classes of algorithms consist of two transmission phases, as in [3], [4]....
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...As in [3], [4], limited feedback from the destination terminal provides one means of overcoming such bandwidth inefficiencies, but we do not repeat the analysis here....
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...As in [3], [4], we focus on the case of slow fading and measure performance by outage probability to isolate the benefits of space diversity....
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...This section highlights the system model that we employ to develop extensions of the repetition-based algorithms in [3], [4] as well as the space–time-coded cooperative diversity algorithms....
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...In our setting with fading, as we increase , the two parameterizations yield tradeoffs between different aspects of system performance: results under exhibit a tradeoff between the normalized SNR gain and spectral efficiency of a protocol, while results under exhibit a tradeoff between the diversity order and normalized spectral efficiency of a protocol [3], [4]....
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3,153 citations
Cites background from "Cooperative diversity in wireless n..."
...Digital Object Identifier 10.1109/JSAC.2005.862417 The best relay selection algorithm lends itself naturally into cooperative diversity protocols [6], [14], [15], which have been recently proposed to improve reliability in wireless communication systems using distributed virtual antennas....
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2,842 citations
References
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"Cooperative diversity in wireless n..." refers background in this paper
..., achievable rates, via three structurally different random coding sche mes: • facilitation [5, Theorem 2], in which the relay does not actively help the source, but rather, facilitates the sourc e transmission by inducing as little interference as possibl e; • cooperation [5, Theorem 1], in which the relay fully decodes the source message and retransmits, jointly with the source, a bin index (in the sense of Slepian-Wolf coding [14], [15]) of the previous source message; • observation2 [5, Theorem 6], in which the relay encodes a...
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...quantized version of its received signal, using ideas from source coding with side information [14], [16], [17]....
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17,102 citations
"Cooperative diversity in wireless n..." refers methods in this paper
...The work of J. N. Laneman and G. W. Wornell was supported in part by ARL Federated Labs under Cooperative Agreement DAAD19-01-2-0011, and by the National Science Foundation under Grant CCR-9979363....
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"Cooperative diversity in wireless n..." refers background in this paper
...INTRODUCTION In wireless networks, signal fading arising from multipath propagation is a particularly severe channel impairment that can be mitigated through the use of diversity [1]....
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