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- W2108299430 abstract "In this paper we consider a cooperative communication system where some a priori information of wireless channels is available at the transmitter. Several opportunistic relaying strategies are developed to fully utilize the available channel information. Then an explicit expression of the outage probability is developed for each proposed cooperative scheme as well as the diversity-multiplexing tradeoff by using order statistics. Our analytical results show that the more channel information available at the transmitter, the better performance a cooperative system can achieve. When the exact values of the source-relay channels are available, the performance loss at low SNR can be effectively suppressed. When the source node has the access to the source-relay and relay-destination channels, the full diversity can be achieved by costing only one extra channel used for relaying transmission, and an optimal diversity-multiplexing tradeoff can be achieved d(r) = (N + 1)(1 - 2r), where N is the number of all possible relaying nodes." @default.
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- W2108299430 date "2007-07-01" @default.
- W2108299430 modified "2023-10-14" @default.
- W2108299430 title "Opportunistic Cooperative Diversity Protocols for Wireless Networks" @default.
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- W2108299430 doi "https://doi.org/10.1109/itwitwn.2007.4318045" @default.
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