Performance Analysis of the Ordered V-BLAST Approach over Nakagami-m Fading Channels

TL;DR

This paper analyzes the performance of the V-BLAST MIMO detection scheme with SIC over Nakagami-m fading channels, providing closed-form bounds for error rates and outage probability, supported by numerical results.

Contribution

It derives tight closed-form bounds for V-BLAST performance over Nakagami-m channels, including error rate and outage probability, considering SIC errors.

Findings

Closed-form bounds for ASER and outage probability

Performance evaluation with numerical results

Effectiveness of V-BLAST over Nakagami-m channels

Abstract

The performance of the V-BLAST approach, which utilizes successive interference cancellation (SIC) with optimal ordering, over independent Nakagami-m fading channels is studied. Systems with two transmit and n receive antennas are employed whereas the potential erroneous decision of SIC is also considered. In particular, tight closed-form bound expressions are derived in terms of the average symbol error rate (ASER) and the outage probability, in case of binary and rectangular M-ary constellation alphabets. The mathematical analysis is accompanied with selected performance evaluation and numerical results, which demonstrate the usefulness of the proposed approach.