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This paper presents an OFDM-based relay network with relay selection employing both decode-and-forward (DF) and amplify-and-forward (AF) approaches. For the network, we derive a lower-bound on the outage probability and the diversity order achievable in frequency selective fading channels. Simulation results show that both DF and AF relaying provides the diversity order same to that obtained from...
Recently, broadcast and multicast services are introduced in cellular networks to deliver multimedia contents efficiently with limited wireless resources. To provide such services more reliably at the cell boundary, we propose a macro diversity coding method for an OFDM cellular system. In the method, cells are divided into multiple cell groups and a coded packet is partitioned into the subblocks...
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