支持多媒体业务的自组织无线网络协议

提出了在多跳、移动的网络环境下使用并行接收支持多媒体业务的自组织网络通信协议 .分层分布式控制的自组织网络由若干包括群首、网关和普通节点的群组成 ,在不相互包含的最大全连通子群使用载波监测多址接入可以消除隐藏终端问题 .对于跳频采用软件无线电技术很容易实现并行接收多路信号 ,解决了由于多跳网络结构引起的碰撞 .使用附带预约的数据格式来预约在约定时间后的信道可以满足实时业务的业务质量要求 .由于协议不要求建立和保持全网同步 ,大大减少了开销 .模拟结果表明这种方案可以有效传输数据业务 .

The self-organizing wireless network protocol supporting multimedia services

The self organizing network communication protocol supporting multimedia with parallel reception in the multihop and mobile network environment is presented. The self organizing network with hierarchical and distributed control is composed of several clusters including clusterhead, gateways and ordinary nodes. In each fully connected subcluster, using the carrier sense multiple access (CSMA) can avoid the hidden terminal problem. For frequency hopping (FH), it is easy to realize the parallel reception of several signals by means of software radio technology, thus eliminating collisions caused by the multihop structure. Piggyback data reservation which appoints the channel after every fixed and appointed time can satisfy the quality of services (QoS) of real time services. Due to no need for establishing and keeping the synchronization in the network, overhead is reduced greatly. The results of simulation show that the scheme can effectively transfer data service.