定向天线Ad Hoc 网络中的一种MAC 层广播机制

doi:10.3969/j.issn.0255-8297.2015.03.005

应用科学学报 ›› 2015, Vol. 33 ›› Issue (3): 262-273.doi: 10.3969/j.issn.0255-8297.2015.03.005

定向天线Ad Hoc 网络中的一种MAC 层广播机制

李默1，黄胜波1，赵亮2

1. 公安海警学院电子技术系，浙江宁波315801
2. 海军东海舰队信息化处，浙江宁波316000

收稿日期:2013-12-11 修回日期:2014-10-09 出版日期:2015-05-30 发布日期:2014-10-09
作者简介:李默，博士，讲师，研究方向：移动通信、通信网络仿真等，E-mail：zlimo@qq.com
基金资助:
国家自然科学基金(No.61300203)；公安海警学院预研项目基金(No.2013XYPYZ012)资助

A MAC Layer Broadcast Mechanism in Ad Hoc Networks with Directional Antenna for Transmission and Reception

LI Mo1, HUANG Sheng-bo1, ZHAO Liang2

1. Department of Electronic Technology, China Maritime Police Academy,
Ningbo 315801, Zhejiang Province, China
2. Division of Informationization, East Sea Fleet, Ningbo 316000, Zhejiang Province, China

Received:2013-12-11 Revised:2014-10-09 Online:2015-05-30 Published:2014-10-09

摘要/Abstract

摘要： 定向发送和定向接收的Ad Hoc 网络具有传输距离远、隐蔽性好等优势，但将传统
的网络层广播机制应用于该类Ad Hoc 网会产生广播包传输时延过大的问题. 针对该问题，提
出利用MAC 层D-TDMA 协议的预约子帧来缩短广播包传输时间的广播机制. 节点一旦与其
邻居交换改进的握手消息就可得知广播包传输的信息，直接与邻居节点预约广播包转发时间，
避免了因等待从父节点接收到广播包后再预约所带来的长时延问题. 仿真结果表明，相比于传
统网络层广播机制，所提出的MAC层广播机制能将广播包更快地传递给网络中所有节点，使
占用的时隙数更少.

关键词: 定向天线, Ad Hoc 网络, 广播, D-TDMA 协议

Abstract: Using directional antennas for both transmission and reception provides many
benefits for Ad Hoc networks such as longer transmission range and lower probability of
being detected. However, applying traditional broadcast mechanisms for network layers
to Ad Hoc networks will cause long delay problem. To deal with this problem, a broadcast
mechanism is proposed, which uses the reservation sub-frame in the D-TDMA MAC
protocol to reduce the time for delivering broadcast packets. Nodes make reservation for
forwarding broadcast packets after exchanging modified handshaking messages with their
neighbors. This can avoid long delay caused by waiting for receiving broadcast packets
from their parent nodes. Simulation shows that, compared to the performance of planting
traditional network layer broadcast mechanism into an Ad Hoc network, broadcast packets
can be transmitted to all nodes more quickly by occupying smaller slots by using the
proposed mechanism.

Key words: directional-TDMA protocol, directional antenna, Ad Hoc network, broadcast

中图分类号:

TN 929.5

李默1，黄胜波1，赵亮2. 定向天线Ad Hoc 网络中的一种MAC 层广播机制[J]. 应用科学学报, 2015, 33(3): 262-273.

LI Mo1, HUANG Sheng-bo1, ZHAO Liang2. A MAC Layer Broadcast Mechanism in Ad Hoc Networks with Directional Antenna for Transmission and Reception[J]. Journal of Applied Sciences, 2015, 33(3): 262-273.

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定向天线Ad Hoc 网络中的一种MAC 层广播机制

A MAC Layer Broadcast Mechanism in Ad Hoc Networks with Directional Antenna for Transmission and Reception

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