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http://dx.doi.org/10.7840/kics.2014.39A.7.404

Distributed MIMO Systems Based on Quantize-Map-and-Forward (QMF) Relaying  

Hong, Bi (Korea Advanced Institue of Science and Technology (KAIST))
Choi, Wan (Korea Advanced Institue of Science and Technology (KAIST))
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.39A, no.7, 2014 , pp. 404-412 More about this Journal
Abstract
Exploiting multiple antennas at mobile devices is difficult due to limited size and power. In this paper, a distributed MIMO protocol achieving the capacity of conventinal MIMO systems is proposed and analyzed. For exploiting distributed MIMO features, Quantize-Map-and-Forward (QMF) scheme shows improved performance than Amplify-and-Forward (AF) scheme. Also, the protocol based on multiple access channel (MAC) is proposed to improve the multiplexing gain. We showed that sufficient condition of the number of slave nodes to achieve the gain of a MAC based protocol. Because the base station can support multiple clusters operating in distributed MIMO, the total cellular capacity can be extremely enhanced in proportional to the number of clusters.
Keywords
Distributed Multiple-Input Multiple-Output (MIMO); quantize-map-and-forward (QMF); compress-and-forward (CF); spatial reuse; user relaying;
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