A Power Allocation Strategy for Multi-Antenna Amplify-and-Forward Fading Relay Channels

Varanese, Nicola; Simeone, Osvaldo; Bar-Ness, Y.; Spagnolini, Umberto

doi:10.1109/ciss.2006.286673

Cited by 1 publication

(2 citation statements)

References 8 publications

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“…However, in case multiple antennas are possible, a cooperative strategy could improve the symbol error rate (SER) performance of the communication system by providing substantial additional diversity benefits. Recently, great attention has been paid to such kinds of cooperative networks, especially with applications in ad-hoc networks [2]- [6]. In [2] and [3] optimal relaying schemes and power allocation methods for multi-antenna relay networks have been investigated.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, great attention has been paid to such kinds of cooperative networks, especially with applications in ad-hoc networks [2]- [6]. In [2] and [3] optimal relaying schemes and power allocation methods for multi-antenna relay networks have been investigated. The authors in [4] were more interested in the diversity-multiplexing aspects of such networks.…”

Section: Introductionmentioning

confidence: 99%

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Symbol Error Rate of Space-Time Coded Multi-Antenna Wireless Cooperative Networks

Vazifehdan

Weber

2008

VTC Spring 2008 - IEEE Vehicular Technology Conference

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Abstract-In this paper, we propose a generalized cooperative signal transmission model for wireless networks. In this model, the source, the destination, and an arbitrary number of relay nodes may have multiple antennas. The source node uses an orthogonal spacetime block code for signal transmission over its multiple antennas to each of the relays and the destination node. Each relay performs a linear processing on the received signals and transmits the processed samples to the destination after encoding them using an orthogonal space-time block code. We analyze the performance of the proposed cooperative model by finding an approximate formula for its symbol error rate at high signal to noise ratios, which determines the total diversity order of the cooperative network. The achieved results show that various cooperative structures with different numbers of relay nodes and different numbers of antennas at each of the source, the destination and the relays, can have the same error rate performance at high signal to noise ratios.

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