Access protocol for terahertz wireless personal area networks based on high efficient handover of piconet coordinator

doi:10.11772/j.issn.1001-9081.2017082062

Journal of Computer Applications ›› 2018, Vol. 38 ›› Issue (3): 728-733.DOI: 10.11772/j.issn.1001-9081.2017082062

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Access protocol for terahertz wireless personal area networks based on high efficient handover of piconet coordinator

REN Zhi, TIAN Jieli, YOU Lei, LYU Yuhui

Key Laboratory of Mobile Communications Technology of Chongqing, Chongqing University of Posts and Telecommunications, Chongqing 400065, China

Received:2017-08-31 Revised:2017-10-16 Online:2018-03-10 Published:2018-03-07
Supported by:
This work is partially supported by the National Natural Science Foundation of China (61379159), the Key Project of Fundamental and Frontier Research of Chongqing (cstc2015jcyjBX0085).

基于网络协调器高效切换的太赫兹无线个域网接入协议

任智, 田洁丽, 游磊, 吕昱辉

重庆邮电大学移动通信技术重庆市重点实验室, 重庆 400065

通讯作者: 田洁丽
作者简介:任智(1971-),男,四川内江人,教授,博士,主要研究方向:宽带无线通信网络;田洁丽(1992-),女,山西运城人,硕士研究生,主要研究方向:太赫兹无线网络跨个域网通信;游磊(1992-),男,湖北武汉人,硕士,主要研究方向:太赫兹无线个域网接入协议;吕昱辉(1993-),男,湖北武汉人,硕士研究生,主要研究方向:太赫兹无线个域网定向MAC协议。
基金资助:
国家自然科学基金资助项目（61379159）；重庆市基础与前沿研究计划项目（cstc2015jcyjBX0085）。

Abstract

Abstract: To resolve the problems currently existing in access protocol for Terahertz Wireless Personal Area Network (THz-WPAN) for PicoNet Coordinator (PNC) handover process, such as imperfect PNC handover process, redundant information transmission, waste of obvious timeslot resources, an access protocol of piconet coordinator high efficient handover for terahertz wireless personal area networks called PCHEH-AP (Piconet Coordinator High Efficient Handover Access Protocol) was proposed. By using deleting the specified node redundancy information mechanism, confirming first and handover next mechanism, PNC handover adaptive slot allocation mechanism, PCHEH-AP generally regulates the PNC handover process, improves channel utilization, reduces data delay, and makes PNC handover more reasonable and efficient. The simulation results show that compared with the protocol defined by IEEE 802.15.3c and the HTLL-MAC protocol, the data delay of PCHEH-AP is reduced by at least 8.98% and the throughput of MAC layer is also increased by 3.90%.

Key words: TeraHertz (THz) wave, Wireless Personal Area Network (WPAN), superframe, PicoNet Coordinator (PNC), handover

摘要： 针对现有的太赫兹无线个域网（THz-WPAN）相关接入协议涉及到的网络协调器（PNC）切换流程不够完善、存在传输冗余信息和较为明显的时隙资源浪费问题，提出一种基于PNC高效切换的太赫兹无线个域网接入协议（PCHEH-AP）。PCHEH-AP通过利用删除指定节点冗余信息、切换先确认以及PNC切换自适应时隙分配等新机制优化了PNC切换流程，提高了信道利用率，减少了数据时延，使得PNC切换更加合理和高效，能够更好地适应于太赫兹无线网络高业务量的需求。仿真结果表明，相比IEEE 802.15.3c定义的协议及HTLL-MAC协议，PCHEH-AP的数据时延至少降低了8.98%，MAC层吞吐量也提升3.90%。

关键词: 太赫兹波, 无线个域网, 超帧, 网络协调器, 切换

CLC Number:

TP393

REN Zhi, TIAN Jieli, YOU Lei, LYU Yuhui. Access protocol for terahertz wireless personal area networks based on high efficient handover of piconet coordinator[J]. Journal of Computer Applications, 2018, 38(3): 728-733.

任智, 田洁丽, 游磊, 吕昱辉. 基于网络协调器高效切换的太赫兹无线个域网接入协议[J]. 计算机应用, 2018, 38(3): 728-733.

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Access protocol for terahertz wireless personal area networks based on high efficient handover of piconet coordinator

基于网络协调器高效切换的太赫兹无线个域网接入协议

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