Title | ||
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Distributed Iterative Detection With Reduced Message Passing for Networked MIMO Cellular Systems. |
Abstract | ||
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This paper considers base station cooperation (BSC) strategies for the uplink of a multiuser multicell high-frequency reuse scenario where distributed iterative detection (DID) schemes with soft/hard interference cancelation (IC) algorithms are studied. The conventional distributed detection scheme exchanges soft-symbol estimates with all cooperating BSs. Since a large amount of information needs to be shared via the backhaul, the exchange of hard bit information is preferred; however, performance degradation is experienced. In this paper, we consider a reduced message passing (RMP) technique in which each BS generates a detection list with the probabilities for the desired symbol that are sorted according to their values in a decreasing order. The network then selects the best detection candidates from the lists and conveys the index of the constellation symbols (instead of double-precision values) among the cooperating cells. The proposed DID-RMP achieves intercell interference (ICI) suppression with low backhaul traffic overhead compared with the conventional soft bit exchange and outperforms previously reported hard/soft information exchange algorithms. |
Year | DOI | Venue |
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2014 | 10.1109/TVT.2013.2295532 | IEEE T. Vehicular Technology |
Keywords | DocType | Volume |
Interference cancellation,Reliability,Vectors,Complexity theory,Base stations,Message passing | Journal | 63 |
Issue | ISSN | Citations |
6 | 0018-9545 | 0 |
PageRank | References | Authors |
0.34 | 0 | 2 |
Name | Order | Citations | PageRank |
---|---|---|---|
Peng Li | 1 | 81 | 11.75 |
Rodrigo C. de Lamare | 2 | 36 | 1.78 |