융합신호처리학회논문지 (Journal of the Institute of Convergence Signal Processing)

한국융합신호처리학회 (The Korea Institute of Convergence Signal Processing)
권호 표지

Time Slot Exchange Protocol in a Reservation Based MAC for MANET

  • Koirala, Mamata (Dept. of Electronic & Information Engineering Chonbuk National University) ;
  • Ji, Qi (Dept. of Electronic & Information Engineering Chonbuk National University) ;
  • Choi, Jae-Ho (Dept. of Electronic & Information Engineering Chonbuk National University)
  • 발행 : 2009.07.30
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초록

Recently, much attention to a self-organizing mobile ad-hoc network is escalating along with progressive deployment of wireless networks in our everyday life. Being readily deployable, the MANET (mobile ad hoc network) can find its applications to emergency medical service, customized calling service, group-based communications, and military purposes. In this paper we investigate a time slot exchange problem found in the time slot based MAC, that is designed for IEEE 802.11b interfaces composing a MANET. The paper provides a method to maintain the quality of voice call by providing a new time slot when the channel assigned for that time slot gets noisy with interferences induced from other nodes, which belong to the same and/or other subgroups. In order to assess the performance of the proposed algorithm, a set of simulations using the OPNET modeler has been performed assuming that the IEEE 802.11b interfaces are operating under a modified MAC, which is a time slot based reservation MAC implemented in the PCF part of the superframe. In a real-time voice call service over a MANET of a size 500 ${\times}$ 500 meter squares with the number of nodes up to 100, the simulation results are collected and analyzed with respect to the packet loss rate and packet delay. The results show us that the proposed time slot exchange protocol improves the quality of voice call over that of plain DCF.

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참고문헌

  1. Hai Liu, Xiaohua Jia, Deying Li, C.H. Lee, "Bandwidth guaranteed call admission in TDMA/CDMA ad hoc wireless networks," Ad Hoc Network, pp. 689-701, 2005.
  2. Irina Gerasimov, Robert Simon, "A bandwidth reservation mechanism for on-demand ad hoc path finding" IEEE Proceedings of the 35th Annual Simulation Symposium, pp. 27-33, 2002.
  3. Chang Wook Ahn, Chaung Gu Kang, You-ze Cho, "Soft reservation multiple access 'with priority assignment: A distributed MAC protocol for QoS-guaranteed integrated services in mobile ad-hoc networks," IEICE Trans. Comm..Vol. E-86, No. 1 pp. 942-947, Jan. 2003.
  4. Kuei-ping Shih, Chih-Yung Chang, Yen-Da Chen, Tsung-Han Chuang, "Dynamic bandwidth allocation for QoS routing on TDMA-based mobile ad hoc networks," Computer Communications, Vol. 29, pp. 1316-1329, 2006. https://doi.org/10.1016/j.comcom.2005.10.009
  5. Chih-Shun Hsu, Jang-Ping Sheu, Shen-Chien Tung, "An on-demand bandwidth reservation QoS routing protocol for mobile ad hoc networks," Proceeding of Sensor Networks, Ubiquitous, and Trustworthy Computing, pp. 198-207, June, 2006.
  6. Yi-Chen Yan, De-Min Li, Dan Xue, "Slot assignment of spatial TDMA in ad-hoc radio networks using fuzzy set" IEEE 6th CAS Symp. On Emerging Technologies: Mobile and Wireless Comm., Shanghi, China, pp. 497-500, May, 2004.
  7. Patrik Bjorklund, Peter Vardrand, Di Yuan, "Resource optimization of spatial TDMA in ad hoc radio networks: A column generation approach," INFOCOM, pp.818-824, March 2003.
  8. Giuseppe Bianchi, "Performance analysis of the IEEE 802.11 distributed coordination function," IEEE Journal on Sel. Areas in Comm., Vol. 18, No 3, pp. 535-547, March 2003.
  9. Chunhung R Lin, "Admission control in time-slotted multihop mobile networks", IEEE Journal on Sel. Areas in Comm., Vol. 19, No. 10, pp. 1974-1983, Oct. 2001. https://doi.org/10.1109/49.957312
  10. Yoshitaka Ham, Toshihisa Nabetani, Shinsuke Hara, "Time slot assignment for cellular SDMA/TDMA systems with antenna arrays," Proceeding of VTC, Rhodes, Greece, pp. 877-880, May. 2001.