Báo cáo hóa học: " Research Article Bargaining and the MISO Interference Channel"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Bargaining and the MISO Interference Channel | Hindawi Publishing Corporation EURASIP Journal on Advances in Signal Processing Volume 2009 Article ID 368547 13 pages doi 2009 368547 Research Article Bargaining and the MISO Interference Channel Matthew Nokleby1 and A. Lee Swindlehurst2 1 Department of Electrical and Computer Engineering Rice University Houston TX 77005 USA 2 Department of Electrical Engineering and Computer Science University of California at Irvine Irvine cA 92697 uSa Correspondence should be addressed to Matthew Nokleby nokleby@ Received 31 October 2008 Revised 27 February 2009 Accepted 8 April 2009 Recommended by Eduard A. Jorswieck We examine the MISO interference channel under cooperative bargaining theory. Bargaining approaches such as the Nash and Kalai-Smorodinsky solutions have previously been used in wireless networks to strike a balance between max-sum efficiency and max-min equity in users rates. However cooperative bargaining for the MISO interference channel has only been studied extensively for the two-user case. We present an algorithm that finds the optimal Kalai-Smorodinsky beamformers for an arbitrary number of users. We also consider joint scheduling and beamformer selection using gradient ascent to find a stationary point of the Kalai-Smorodinsky objective function. When interference is strong the flexibility allowed by scheduling compensates for the performance loss due to local optimization. Finally we explore the benefits of power control showing that power control provides nontrivial throughput gains when the number of transmitter receiver pairs is greater than the number of transmit antennas. Copyright 2009 M. Nokleby and A. L. Swindlehurst. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. 1. Introduction After more than a decade of intense research multiantenna communications systems are .

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