Next generation wireless communications: cognitive radio and wireless sensor network

拟议的研究将调查下一代无线通信的不同方面。认知无线电技术是一种新的频谱管理框架，在这种框架下，未授权的二次无线电设备能够感知频谱的使用情况，并有效地调整其传输参数，以智能地利用大量未使用的频谱，同时不干扰已授权的主用户。我们建议在认知无线电框架中研究智能机会频谱接入，开发有效的收发器设计和错误控制编码方案，并对认知频谱共享系统的性能进行理论分析。此外，我们还提出对无线传感器网络中的空间采样设计进行研究。

The proposed research will investigate different aspects of next generation wireless communications. We propose to investigate cognitive radio technique, which is a new spectrum management framework where unlicensed secondary radio devices are capable of sensing spectrum utilization and effectively adjusting their transmission parameters in order to utilize the large amount of unused spectrum in an intelligent way while not interfering with licensed primary users. We propose to investigate intelligent opportunistic spectrum access in a cognitive radio framework, to develop efficient transceiver designs and error control coding schemes and to develop theoretical analyses of the performance in cognitive spectrum sharing systems. In addition, we also propose to investigate the spatial sampling design in wireless sensor network.