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Title:
GEO通信系统中MAC层信道分配算法研究
Alternative Title: ON MAC LAYER CHANNEL ALLOCATION ALGORITHM IN GEO TELECOMMUNICATION SYSTEM
Author: 曾显华 ; 陈建州 ; 刘立祥
Keyword: GMPRS协议 ; 介质访问控制 ; 信道分配算法 ; QualNet仿真 ; GMPRS protocol ; Medium access control ; Channel allocation algorithm ; QualNet simulation
Source: 计算机应用与软件
Issued Date: 2014
Volume: 31, Issue:6, Pages:99-102
Indexed Type: CSCD
Department: 中国科学院软件研究所天基综合信息系统重点实验室 北京100190;中国科学院大学 北京100049 中国科学院软件研究所天基综合信息系统重点实验室 北京100190
Abstract: 基于GEO移动无线分组业务GMPRS(GEO-Mobile Packet Radio Service)协议,实现网络端MAC层信道管理功能并提出一种混合信道分配算法HCA.不同于传统的GEO信道分配算法,HCA根据同信道小区的信道占用情况与干扰小区的信道利用率,计算信道分配代价,以提高GMPRS频谱利用率.采用QualNet对MAC层信令流程进行仿真,并验证算法性能.仿真结果表明,在信道资源一定的情况下,HCA能够降低阻塞率,提高GEO系统容量.
English Abstract: Based on GEO mobile packet radio service specification GMPRS protocol, we realise the network-side MAC layer channel management function and present a hybrid channel allocation (HCA) algorithm. Unlike traditional GEO channel allocation schemes, HCA calculates the channel allocation cost according to channel occupancy in cells using the same channels and the utilisation of channels in adjacent cells in order to improve GMPRS spectrum utilisation. QualNet is employed to simulate the signaling flow at MAC layer, where the algorithm performance is also verified. Simulation results show that HCA can reduce block rate and increase GEO system capacity under the condition of channel resource to be certain.
Language: 中文
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Content Type: 期刊论文
URI: http://ir.iscas.ac.cn/handle/311060/16742
Appears in Collections:软件所图书馆_期刊论文

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Recommended Citation:
曾显华,陈建州,刘立祥. GEO通信系统中MAC层信道分配算法研究[J]. 计算机应用与软件,2014-01-01,31(6):99-102.
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