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发明公开
CN105578523A 基于协作MAC协议的802.11自组织网络能效优先方法 有权

基于协作MAC协议的802.11自组织网络能效优先方法
摘要：
本发明公开了一种基于协作MAC协议的802.11自组织网络能效优先方法，主要步骤有源节点i根据1跳邻居拓扑的链路信息，选择到达目的节点j的能效满足Eikj＞Eij，Eij为源节点i直接向目的节点j传输的能效，Eikj为源节点i通过中继节点k向目的节点j传输的能效，且具有最大Eikj值的中继节点k作为中继节点，发送RRTS帧，并设置RCTS超时接收计时器；目的节点j收到RTS消息，按照标准802.11方式回复CTS，然后目的节点j进入数据接收状态；中继节点k一旦收到来至源节点i的RRTS消息，则发送一个RCTS至源节点i，通知源节点i可以通过中继进行转发数据，同时保存RRTS中的目的MAC地址。本发明通过中继协作技术对无线传输速率和传输能耗同时进行优化，提高单位能量传输的比特数。
摘要（英）：

The invention discloses a 802.11 self-organizing network energy efficiency precedence method based on a cooperation MAC protocol. The method comprises steps that a source node i selects that energy efficiency reaching a target node j satisfiers Eikj>Eij according to link information of next-hop neighborhood topology, wherein Eij is the energy efficiency transported by the source node i to the target node j, Eikj is the energy efficiency transported by the source node i to the target node j via a relay node k, and the relay node k with the maximum Eikj value sends an RRTS frame as the relay node and is provided with an RCTS overtime receiving timer; the target node j receives RTS information, replies a CTS according to the standard 802.11 mode and then enters a data receiving state; once receiving the RRTS information from the source node i, the relay node k sends an RCTS to the source node i, informs the source node i to transform the data via a relay, and stores a target MAC address in the RRTS. According to the invention, wireless transmission rate and transmission energy consumption are optimized via the relay cooperation technology, and the bit number of unit energy transmission is increased.

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