蜂窝网络中M2M通信上行接入资源分配  

Resource Allocation for Machine-to-Machine Communications with Multiple Access in Cellular Networks

作　　者：林启中 张冬梅[1] 许魁[1] 谢威[1] 

机构地区：[1]解放军理工大学通信工程学院,南京210007

出　　处：《应用科学学报》2015年第2期129-141,共13页Journal of Applied Sciences

基　　金：国家自然科学基金(No.61371123;No.61301165)资助

摘　　要：蜂窝网络将在未来机器与机器(machine-to-machine,M2M)通信网络中发挥基础性作用,而大量M2M终端的能量有限且补充成本较大,使传统的人与人(H2H)通信资源分配方案无法满足M2M通信需求.为此,研究了蜂窝网络中M2M设备上行通信时的资源分配问题,针对时分多址和频分多址两种多址接入机制提出了基于休眠模式的动态资源分配算法.首先,通过基站智能丢包,使负载增益最大化;其次,在网络无休眠时用最小-最大资源分配法来最优化网络寿命;最后,在容许休眠时将剩余能量与休眠模式相联系,分别提出了基站集中式和设备分布式动态资源配置策略,以实现能量均衡消耗.An increasing number of machine-to-machine （M2M） devices are accessing up- stream of the cellular network, while the resource is limited. This paper analyzes the resource allocation problem when M2M devices multiple access upstream with time divi- sion multiple access （TDMA） or frequency division multiple access （FDMA）. An algorithm is proposed to allow sleep mode to dynamically allocate resource. By dropping a small fraction of arrivals from the devices farther out near the cell edge, the base station can increase its maximum load. While allowing dormancy and relating remaining energy with sleep mode, both the base station centrally dynamically allocating resource and devices＇ distributed opportunistic uploading can achieve a network lifetime longevity compared with no sleep mode.

关 键 词：机器与机器 蜂窝网络 多址接入 资源分配 网络寿命 

分 类 号：TN929.5[电子电信—通信与信息系统]