Optimum Power and Rate Allocation for Coded V-BLAST: Average Optimization

Details Optimum Power and Rate Allocation for Coded V-BLAST: Average Optimization Optimum Power and Rate Allocation for Coded V-BLAST: Average Optimization

2010-10-13

arxiv.org/abs/1010.2789v1

Computer Science

Information Theory

accepted by IEEE Transactions on Communications

Scientific paper

An analytical framework for performance analysis and optimization of coded V-BLAST is developed. Average power and/or rate allocations to minimize the outage probability as well as their robustness and dual problems are investigated. Compact, closed-form expressions for the optimum allocations and corresponding system performance are given. The uniform power allocation is shown to be near optimum in the low outage regime in combination with the optimum rate allocation. The average rate allocation provides the largest performance improvement (extra diversity gain), and the average power allocation offers a modest SNR gain limited by the number of transmit antennas but does not increase the diversity gain. The dual problems are shown to have the same solutions as the primal ones. All these allocation strategies are shown to be robust. The reported results also apply to coded multiuser detection and channel equalization systems relying on successive interference cancelation.

Affiliated with

Also associated with

No associations

Rating

Optimum Power and Rate Allocation for Coded V-BLAST: Average Optimization does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Optimum Power and Rate Allocation for Coded V-BLAST: Average Optimization, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optimum Power and Rate Allocation for Coded V-BLAST: Average Optimization will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-284540