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| On The Effectiveness of Cooperation Diversity and Truncated ARQ in Single Relay Wireless Networks: A Cross-Layer Study |
| Meng Qing-min①③; Ma Bao-ping②; Gao Xi-qi③;You Xiao-hu③ |
| ①College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China;②School of Electrical and Automatic Engineering, Nanjing Normal University, Nanjing 210042, China;③National Mobile Communications Research Lab, Southeast University, Nanjing 210096, China |
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Abstract In this paper, a cross-layer cooperative design is developed under the constraint of maximum transmission number per node in an uncoded two-hop relay network. Two-type simple single-relay adaptive cooperative protocols are proposed in order to exploit a combined spatial and time diversity. Analysis and simulation show that for the asymmetric multi-hop relay wireless networks, the cooperative protocols enable effective antenna/energy share and remarkable frame error rateperformance gain in block fading channels at the moderate loss of average throughput due to truncated ARQ(Automatic Repeat Request) re-transmissions.
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Received: 27 April 2006
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2007, Vol. 29 
