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- Larsson, Peter, 1966-, et al.
(författare)
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Large-Scale Cooperative Relaying Network with Optimal Coherent Combining under Aggregate Relay Power Constraints
- 2004
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Ingår i: WWRF: New Air Interfaces, Relay based Systems and Smart Antennas.
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- 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.
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