Closed-Loop Binary Media-Based Modulation

TL;DR

This paper analyzes Binary Media-Based Modulation (B-MBM) over fading channels, showing that feedback and optimal weighting enable higher diversity orders and performance comparable to Alamouti-coded BPSK with minimal hardware.

Contribution

It provides analytical results demonstrating the benefits of closed-loop B-MBM with feedback, achieving higher diversity and performance with a single RF chain.

Findings

Open-loop B-MBM has diversity order of one.

Closed-loop B-MBM with feedback achieves diversity order of two.

Closed-loop B-MBM matches Alamouti-coded BPSK performance.

Abstract

Presenting analytical results for Binary Media-Based Modulation (B-MBM) over fading channels for single-antenna receivers. Illustrating that open-loop B-MBM, in the absence of feedback, only achieves a diversity order of one. However, with feedback and optimal weight selection in closed-loop configurations, a diversity order of two becomes achievable. Notably, the closed-loop B-MBM, with analytically computed optimal weights, performs equivalent to Alamouti-coded BPSK transmission, demonstrating feasibility even with just one radio frequency chain when feedback is available.