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On the minimum side information of MIMO broadcast channel

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5 Author(s)
Zheng Wang ; Dept. of Electr. Eng., Univ. of California, Santa Cruz, CA, USA ; Mingyue Ji ; Dritsoula, L. ; Sadjadpour, H.R.
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We introduce a technique to achieve dirty paper coding (DPC) capacity asymptotically with minimum feedback required reported to date in literature. Our approach called opportunistic interference management, is based on a new multiuser diversity scheme designed for wireless cellular networks. When there are K antennas at the base station with M mobile users in the cell, the proposed technique only requires K integer numbers related to channel state information (CSI) between mobile users and base station. The encoding and decoding complexity of this scheme is the same as that of point-to-point communications. In order to guarantee fairness, a new algorithm is proposed which incorporates opportunistic interference management into existing GSM standard.

Published in:

Wireless Conference (EW), 2010 European

Date of Conference:

12-15 April 2010

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