Analysis of parallel polling to maintain high-speed packet transfer for fast-moving terminals in microcellular network
Analysis of parallel polling to maintain high-speed packet transfer for fast-moving terminals in microcellular network
复制标题
微蜂窝网络中快速移动终端维持高速数据包传输的并行轮询分析
DOI：
10.1109/vetecf.2004.1405059
复制
发表时间：
2004
期刊：
影响因子：
--
通讯作者：
S. Kawata
中科院分区：
文献类型：
--
作者：
T. Yamada;P. T. Hoa;S. Kawata
本文介绍了移动多媒体城域网络MM-MAN的分组传输控制过程，MM-MAN被认为是Beyond-3G的组成网络，部署在大城市商业区的主要道路上。MM-MAN支持在微蜂窝网络中向快速移动终端传输基于IP的高比特率分组。为了满足快速移动的平滑切换，引入了逻辑宏小区(LMC)的概念，它由多个相邻的微小区组成。一组轮询信号被并行地发射到LMC中的每个微小区，并且在目标移动终端所在的小区之一中传输分组。轮询ACK被多播到LMC中的每个微小区以同步并行轮询。对于轮询确认错误等特殊情况，应在LMC中的每个微小区中独立设置超时重新轮询。每个终端的分组传输吞吐量取决于分组大小和ACK组播延迟。在200/SPLMU/秒多播延迟的情况下，对于200、500和1600字节的分组，在100Mbps分组多路复用介质上的吞吐量分别为7.171、17.927和57.368 Mbps。每个基站中的吞吐量取决于分组大小。对于200、500和1600字节的分组，其速率分别为15.54、31.5和59.54 Mbps。吞吐量由每个微小区中的多个移动终端共享。
The paper presents packet transfer control procedures in an MM-MAN (mobile multimedia metropolitan area network) which is considered to be a component network of beyond-3G, and is deployed along main roads in metropolitan business areas. The MM-MAN supports IP-based, high bit rate packet transfer to fast- moving terminals in microcellular networks. To satisfy a smooth handover with fast movement, the concept of a logical macrocell (LMC) is introduced which consists of a number of adjacent microcells. A set of polling signals is emitted in parallel to every microcell in the LMC, and packets are transferred in one of the cells where the target mobile terminal exists. Polling ACK is multicast to every microcell in the LMC to synchronize the parallel polling. For exceptional cases, like polling ACK error, time-out re-polling should be set independently in each microcell in the LMC. Packet transfer throughput of each terminal depends on the packet size and ACK multicast delay. In the case of 200 /spl mu/sec multicast delay, the throughput over a 100 Mbps packet-multiplexing medium is 7.171, 17.927 and 57.368 Mbps for 200, 500, and 1600 byte packets, respectively. The throughput in each base station depends on the packet size. It is 15.54, 31.5, and 59.54 Mbps for 200, 500 and 1600 byte packets, respectively. The throughput is shared by a number of mobile terminals in each microcell.