Wireless Personal Communications: An International Journal
Cooperative Communications and Networking
Cooperative Communications and Networking
IEEE Transactions on Wireless Communications
Exact symbol error probability of a Cooperative network in a Rayleigh-fading environment
IEEE Transactions on Wireless Communications
Diversity through coded cooperation
IEEE Transactions on Wireless Communications
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
On the achievable diversity-multiplexing tradeoff in half-duplex cooperative channels
IEEE Transactions on Information Theory
Capacity bounds for Cooperative diversity
IEEE Transactions on Information Theory
Variable-Rate Two-Phase Collaborative Communication Protocols for Wireless Networks
IEEE Transactions on Information Theory
Adaptive nonuniform phase-shift-key modulation for multimedia traffic in wireless networks
IEEE Journal on Selected Areas in Communications
Fading relay channels: performance limits and space-time signal design
IEEE Journal on Selected Areas in Communications
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For a three node cooperative wireless network with an overall transmission power constraint, we present an adaptive cross-layer design framework for maximization of a single user throughput using the power allocation ratio among the source and relay nodes, the packet length, and the modulation level as optimization variables. The design framework integrates automatic repeat request (ARQ) at the MAC layer and cooperative diversity at the physical (PHY) layer. We consider amplify-and-forward (AF) and selective decode-and-forward (SDF) schemes in our study and investigate the impact of average channel qualities on throughput maximization. We show that at low SNR regime, the maximum throughput is achieved by adapting the power allocation between the source and the relay nodes, whereas at high SNR the maximum throughput is attained by adapting all three parameters. While the two cooperative schemes have the same diversity gain, we show that the SDF scheme provides a slightly higher throughput than AF.