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基于CDMA技术的Ad hoc网络扩频码的分配方案对系统吞吐量性能有着重要的影响,如何充分利用CDMA多址接入能力提高Ad hoc信道利用率等网络性能,是一项具有很强挑战性的研究。通过建立网络状态的马尔可夫模型,提出一种分析吞吐量性能的方法,所提出的方法适用于同时存在背景噪声和多址干扰的情况。最后通过数值仿真分析了扩频增益和信噪比对吞吐量性能的影响,并对网络参数进行了优化配置。
The allocation scheme of Ad hoc network spreading codes based on CDMA technology has an important influence on the throughput performance of the system. How to make full use of CDMA multiple access capabilities to improve network performance such as Ad hoc channel utilization is a very challenging Research. By establishing the Markov model of network status, a method of analyzing the performance of throughput is proposed. The proposed method is suitable for the case of both background noise and multiple access interference. Finally, the influence of spread-spectrum gain and signal-to-noise ratio on the throughput performance is analyzed by numerical simulation, and the network parameters are optimized.