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Large-Scale Cooperative Relaying Network with Optimal Coherent Combining under Aggregate Relay Power Constraints
Ericsson Research, Isafjordsgatan 14E, 164 93 Kista, Sweden.
Ericsson Research, Isafjordsgatan 14E, 164 93 Kista, Sweden.
2004 (English)In: WWRF: New Air Interfaces, Relay based Systems and Smart Antennas, 2004Conference paper (Other academic)
Abstract [en]

Communication schemes exploiting cooperating relay nodes can enable significant SNR and diversity order enhancements. In this paper, a communicating pair of nodes with support from an arbitrary number of relay nodes cooperating in parallel is considered, and the optimal weighting parameters for coherent combining based non-regenerative relaying are derived under aggregate relay power constraint. The analysis demonstrates that each relay merely requires multiplying the received signal with an individual phase and amplitude factor and a common amplitude normalization factor. It is illustrated that the resulting SNR is substantially enhanced compared to direct communication and that SNR improves with increasing relay station density.

Place, publisher, year, edition, pages
National Category
Communication Systems
URN: urn:nbn:se:kth:diva-67474OAI: diva2:484999
WWRF 2004
Qc 20120203Available from: 2012-02-03 Created: 2012-01-27 Last updated: 2012-02-03Bibliographically approved

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Larsson, Peter
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ReferencesLink to record
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