Joint Communications and Sensing: A Comprehensive Study

TL;DR

This paper provides a comprehensive analysis of joint communications and sensing (JCS), exploring bandwidth and power tradeoffs, and establishing the feasible region and tradeoff boundaries for optimizing both functions.

Contribution

It offers a detailed theoretical study of bandwidth and power conflicts in JCS, including the derivation of feasible regions and tradeoff boundaries.

Findings

Bandwidth is approximately partitioned between communication and sensing.

Power conflict in JCS is marginal.

Feasible region and tradeoff boundary of JCS are derived.

Abstract

Joint communications and sensing (JCS) can improve the efficiency of power, bandwidth and hardware usage. The conflict between communications and sensing is analyzed in terms of bandwidth and power. It is found that the bandwidth is approximately partitioned between communication and sensing, thus making an almost zero-sum game, while the conflict in the power is marginal. The same conclusion holds when the receiver and target are separated. The feasible region and tradeoff boundary of JCS are obtaine.