| WPAN应用环境下IEEE 802.11b最优包长 |
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| 引用本文： | 谷金山,沈连丰,苏红平,邱晓华,黄忠虎. WPAN应用环境下IEEE 802.11b最优包长[J]. 东南大学学报(自然科学版), 2005, 35(5): 659-663 |
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| 作者姓名： | 谷金山 沈连丰 苏红平 邱晓华 黄忠虎 |
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| 作者单位： | 东南大学移动通信国家重点实验室,南京,210096;江苏紫金电子集团有限公司,南京,210028 |
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| 基金项目： | 教育部科学技术基金，江苏省高技术研究发展计划项目 |
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| 摘 要： | 为了提高WPAN应用环境下IEEE 802.11b的吞吐量,首先分析IEEE 802.11b DCF协议应用时的数据包传输时序,得到IEEE 802.11b系统的吞吐量性能与包长及包错误概率的关系,然后对WPAN干扰网络存在时包错误概率与PLCP服务数据单元(PSDU, PLCP service data unit)值之间的关系进行建模.在理论上证明了在一定的WPAN干扰强度下,IEEE 802.11b系统存在一个最佳的数据包长度,可以使得系统的吞吐量最大.在此基础上提出了WPAN干扰网络存在时的自适应包长方案.仿真结果表明,所提方案可以有效地提高网络吞吐量.
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| 关 键 词： | 无线个域网 蓝牙 IEEE 802.11b |
| 文章编号： | 1001-0505（2005）05-0659-05 |
| 收稿时间： | 2005-03-23 |
| 修稿时间： | 2005-03-23 |
Optimal packet length research of IEEE 802.11b under WPAN application environment |
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| Gu Jinshan,Shen Lianfeng,Su Hongping,Qiu Xiaohua,Huang Zhonghu. Optimal packet length research of IEEE 802.11b under WPAN application environment[J]. Journal of Southeast University(Natural Science Edition), 2005, 35(5): 659-663 |
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| Authors: | Gu Jinshan Shen Lianfeng Su Hongping Qiu Xiaohua Huang Zhonghu |
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| Affiliation: | 1 tNational Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China;2 Jiangsu Zijin Electronic Group Corporation, Nanjing 210028, China |
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| Abstract: | To improve IEEE 802.11b systems throughput under WPAN(wireless personal area network) environments,data-packet transferring time-sequence of IEEE 802.11b DCF(distributed coordination function) protocol is analyzed firstly,and the relation among throughput performances,packet lengths and packet error probabilities of IEEE 802.11b systems is deduced.Then the relation between packet error probabilities and PSDU(PLCP service data unit) with coexisting WPAN interference networks is modeled.The conclusion that IEEE 802.11b has an optimal packet length to maximize system throughputs under certain WPAN interference intensity is proved theoretically.Based on this,self-adaptive packet length scheme is brought forward when WPAN interference networks coexists.Simulation results show that the presented scheme can efficiently improve network throughputs. |
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| Keywords: | IEEE 802.11b |
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