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。我们建议研究认知无线电技术，这是一种新的频谱管理框架，其中未授权的次级无线电设备能够感知频谱利用率并有效地调整其传输参数，以便以智能的方式利用大量未使用的频谱，同时不干扰授权的主用户。我们建议在认知无线电框架下研究智能机会频谱接入，开发高效的收发器设计和差错控制编码方案，并对认知频谱共享系统的性能进行理论分析。此外，我们也提出研究无线感测网路中的空间取样设计。

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.