Enhanced limited-coordination strategies for multi-user MIMO sytems

Aluko, Obadamilola; Clerckx, Bruno; Love, David J.; Krogmeier, James V.

doi:10.1109/acssc.2010.5757717

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2012

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“…However, for a thirdparty node, e.g., the node k = i, j, the channel information of link (i, j) is unknown to it. In some network design, such thirdparty information communication [1], [2] is often necessary.…”

Section: Introductionmentioning

confidence: 99%

Exchanging third-party information with minimum transmission cost

Wang

Song

Yuen

et al. 2012

2012 IEEE Global Communications Conference (GLOBECOM)

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Abstract-In this paper, we consider the problem of minimizing the total transmission cost for exchanging channel state information. We proposed a network coded cooperative data exchange scheme, such that the total transmission cost is minimized while each client can decode all the channel information held by all other clients. In this paper, we first derive a necessary and sufficient condition for a feasible transmission. Based on the derived condition, there exists a feasible code design to guarantee that each client can decode the complete information. We further formulate the problem of minimizing the total transmission cost as an integer linear programming. Finally, we discuss the probability that each client can decode the complete information with distributed random linear network coding.

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Section: Introductionmentioning

confidence: 99%