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Greedy SINR Maximization in Collaborative Multibase Wireless Systems

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Abstract

We present a codeword adaptation algorithm for collaborative multibase wireless systems. The system is modeled with multiple inputs and multiple outputs (MIMO) in which information is transmitted using multicode CDMA, and codewords are adapted based on greedy maximization of the signal-to-interference-plus-noise ratio. The procedure monotonically increases the sum capacity and, when repeated iteratively for all codewords in the system, converges to a fixed point. Fixed-point properties and a connection with sum capacity maximization, along with a discussion of simulations that corroborate the basic analytic results, are included in the paper.

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Correspondence to Otilia Popescu.

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Keywords

  • multibase systems
  • collaboration
  • MIMO
  • sum capacity
  • interference avoidance