Wireless body area network (WBAN) is growing enormously with the technical development of the internet of things (IOT). On body WBAN is one of the types in which sensors are located on the body of patient. Cooperative techniques are useful in mitigating the fading effect and improving the quality of the transmitted signal. In the current work, a mathematical model considering cooperative CM3A operating at ultra-wide band (UWB) (3.1–10.6 GHz) has been devised. A comparative performance analysis of received power and critical parameters like SNR, outage probability, probability of error, and the packet error rate has been carried out for cooperative and noncooperative scenarios. An objective function has been formulated to optimize link quality parameters using a particle swarm optimization algorithm (PSO). Simulation results obtained reveals that performance of considered cooperative WBAN is better in comparison to non- cooperative WBAN. Further optimization improves the outage probability of cooperative WBAN by approximately 30 % and energy consumption is reduced by approx.5 %. Cooperative approach is beneficial for considered WBAN scenario.

随着物联网（IOT）的技术发展，无线人体局域网（WBAN）急剧增长。在身体上，WBAN是传感器位于患者身体上的一种类型。合作技术可用于减轻衰落效应并改善传输信号的质量。在当前的工作中，已经设计了一个考虑在超宽带（UWB）（3.1-10.6 GHz）下工作的协作CM3A的数学模型。对于协作和非协作方案，已经对接收功率和关键参数（例如SNR，中断概率，错误概率和分组错误率）进行了比较性能分析。已经制定了目标函数，以使用粒子群优化算法（PSO）优化链接质量参数。获得的仿真结果表明，与非合作WBAN相比，考虑的合作WBAN的性能更好。进一步的优化将协作WBAN的中断可能性提高了约30％，能耗降低了约5％。合作方法对于考虑的WBAN方案是有益的。