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In this letter, under the assumption of multiple antennas are available at the relay nodes, we provide a detailed analysis about the performance of opportunistic multi-antenna relay selection (OMRS) scheme in Decode-and-Forward (DF) relay networks over independent, non-identical, Nakagami-m fading channels. By applying the moment-generating function (MGF) of the total signal-to-noise ratio (SNR) at...
In this paper, we propose a location-aware relay selection (LARS) scheme based on geographical information in the distributed opportunistic relay (OR) communication system. The scheme aims to limit the contention among potential relays through dividing the whole relay selection region into some small nonoverlapping contending torus zones. If a relay lies in the specified contending zone and its local...
Some recent studies have focused on the performance of multi-antenna relay systems assuming that perfect channel state information at the transmitter(CSIT) or no CSIT of relay-destination link are available. However, there is still a lack of research on the performance of fixed relay networks with finite feedbacks. In this paper, we present the closed-form expression of outage probability for decode-and-forward...
In this paper, a two-hop amplify-and-forward cooperative diversity system using OFDM modulation was considered. We proposed an associated waterfllling power allocation scheme under separate power constraints at source and relay, which allocated source and relay power in an associated fashion. The scheme first allocated power to subcarriers uniformly, then gave an approximate equivalent channel gain...
A novel coding scheme called the distributed generalized low-density (GLD) code is proposed for cooperative relay networks. In this scheme, each relay node decodes and forwards some of the constituent codes of the GLD code to cooperatively form a distributed GLD code using the partial error-detecting and error-correcting capabilities of the GLD code. Distributed GLD codes can easily be adjusted to...
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