在3GPP LTE的上行传输中引入了一种虚拟MIMO（V-MIMO）技术。用户配对是V-MIMO技术中一个重要而独特的环节,设计配对算法必须考虑用户吞吐量和公平性。在分析传统的用户配对算法的基础上,提出了一个新的基于SINR（Signal to interfer-en...在3GPP LTE的上行传输中引入了一种虚拟MIMO（V-MIMO）技术。用户配对是V-MIMO技术中一个重要而独特的环节,设计配对算法必须考虑用户吞吐量和公平性。在分析传统的用户配对算法的基础上,提出了一个新的基于SINR（Signal to interfer-ence plus noise ratio）的比例公平（SNIR-PF）配对算法,此算法同时兼顾公平性和高效性并相对降低系统复杂性。同时该文最后通过显示仿真数据来说明这种算法对传统算法的优越性。展开更多
Employing cooperative communication in multihop wireless sensor networks provides the network with significant energy efficiency. However, the lifetime of such a network is directly dependant upon the lifetime of each...Employing cooperative communication in multihop wireless sensor networks provides the network with significant energy efficiency. However, the lifetime of such a network is directly dependant upon the lifetime of each of its individual sections (or clusters). Ignoring the fact that those sections close to sink have to forward more data (their own data plus the data received from the previous sections) and hence die sooner with considering equal section sizes, leads to a sub-optimal lifetime. In this paper, we optimize the section sizes of a multihop cooperative WSN so that it maximizes the network lifetime. Simulation results demonstrate a significant lifetime enhancement for the proposed optimal sectoring.展开更多
文摘在3GPP LTE的上行传输中引入了一种虚拟MIMO（V-MIMO）技术。用户配对是V-MIMO技术中一个重要而独特的环节,设计配对算法必须考虑用户吞吐量和公平性。在分析传统的用户配对算法的基础上,提出了一个新的基于SINR（Signal to interfer-ence plus noise ratio）的比例公平（SNIR-PF）配对算法,此算法同时兼顾公平性和高效性并相对降低系统复杂性。同时该文最后通过显示仿真数据来说明这种算法对传统算法的优越性。
文摘Employing cooperative communication in multihop wireless sensor networks provides the network with significant energy efficiency. However, the lifetime of such a network is directly dependant upon the lifetime of each of its individual sections (or clusters). Ignoring the fact that those sections close to sink have to forward more data (their own data plus the data received from the previous sections) and hence die sooner with considering equal section sizes, leads to a sub-optimal lifetime. In this paper, we optimize the section sizes of a multihop cooperative WSN so that it maximizes the network lifetime. Simulation results demonstrate a significant lifetime enhancement for the proposed optimal sectoring.
