Accession Number:

ADA517395

Title:

Cognitive CDMA Channelization

Descriptive Note:

Conference paper

Corporate Author:

STATE UNIV OF NEW YORK AT BUFFALO DEPT OF ELECTRICAL ENGINEERING

Report Date:

2010-03-01

Pagination or Media Count:

18.0

Abstract:

We consider the problem of simultaneous power and code-channel allocation of a secondary transmitterreceiver pair coexisting with a primary code-division-multiplexed CDM system. Our objective is to find the optimum transmitting power and code sequence of the secondary user that maximizes the signal-to-interference-plus-noise ratio SINR at the output of the maximum SINR linear receiver while, at the same time, the SINR of all primary users at the output of their max-SINR receiver is maintained above a certain threshold. This is an NP-hard non-convex optimization problem. In this paper, we propose a novel feasible suboptimum solution using semidefinite programming. Simulation studies illustrate the theoretical developments.

Subject Categories:

  • Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE