naa a22 4500 510796788 CHVBK 20180411083339.0 cr unu---uuuuu 180411e20131201xx s 000 0 eng 10.1007/s11277-013-1206-9 doi (NATIONALLICENCE)springer-10.1007/s11277-013-1206-9 On Busy-Tone Based MAC Protocol for Wireless Networks with Directional Antennas [Elektronische Daten] [Hong-Ning Dai, Kam-Wing Ng, Min-You Wu] The application of directional antennas in wireless ad hoc networks offers numerous benefits, such as the extended communication range, the increased spatial reuse, the improved capacity and the suppressed interference. However, directional antennas can cause new location-dependent carrier sensing problems, such as new hidden terminal and deafness problems, which can severely degrade the network performance. Recently, a few schemes have been proposed to address these problems. However, most of these existing methods can only partially solve the hidden terminal and deafness problems. Some of them even bring significant performance overhead. In this paper, we propose a novel MAC protocol, in terms of the busy-tone based directional medium access control (BT-DMAC) protocol. In BT-DMAC, when the transmission is in progress, the sender and the receiver will turn on their omni-directional busy tones to protect the on-going transmission. Integrating with the directional network allocation vector (DNAV), the scheme can almost mitigate the hidden terminal problem and the deafness problem completely. We then propose an analytical model to investigate the throughput performance of BT-DMAC. The numerical results show that BT-DMAC outperforms other existing directional MAC schemes. We next evaluate the performance of BT-DMAC through extensive simulation experiments. The results show that our proposed BT-DMAC scheme has superior performance to other existing solutions, in terms of higher throughput. Springer Science+Business Media New York, 2013 Wireless networks nationallicence Directional antennas nationallicence Medium access control nationallicence Performance analysis nationallicence Dai Hong-Ning Faculty of Information Technology, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao aut Ng Kam-Wing Department of Computer Science and Engineering, The Chinese University of Hong Kong, Shatin, NT, Hong Kong aut Wu Min-You Department of Computer Science and Engineering, Shanghai Jiao Tong University, SEIEE Building #04-417, 800 Dongchuan Road, Shanghai, People's Republic of China aut Wireless Personal Communications Springer US; http://www.springer-ny.com 73/3(2013-12-01), 611-636 0929-6212 73:3<611 2013 73 11277 https://doi.org/10.1007/s11277-013-1206-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-013-1206-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dai Hong-Ning Faculty of Information Technology, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao aut NATIONALLICENCE 700 1- Ng Kam-Wing Department of Computer Science and Engineering, The Chinese University of Hong Kong, Shatin, NT, Hong Kong aut NATIONALLICENCE 700 1- Wu Min-You Department of Computer Science and Engineering, Shanghai Jiao Tong University, SEIEE Building #04-417, 800 Dongchuan Road, Shanghai, People's Republic of China aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 73/3(2013-12-01), 611-636 0929-6212 73:3<611 2013 73 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer