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We examine in this paper the benefits of beamforming techniques in ad hoc networks. We first devise a novel MAC paradigm for ad hoc networks when using these techniques in multipath fading environment. In such networks, the use of conventional directional antennas does not necessarily improve the system performance. On the other hand, the exploitation of the potential benefits of smart antenna systems and especially beamforming techniques needs a prior knowledge of the physical channel. Our proposition performs jointly channel estimation and radio resource sharing. We validate the fruitfulness of the proposed MAC and we evaluate the effects of the channel estimation on the network performance. We then present an accurate analytical model for the performance of IEEE 802.11 MAC protocol. We extend the latter model, by introducing the fading probability, to derive the saturation throughput for our proposed MAC when the simplest beamforming strategy is used in real multipath fading ad hoc networks. Finally, numerical results validate our proposition.
Choudhury RR, Yang X, Ramanathan R, Vaidya NH: Using directional antennas for medium access control in ad hoc networks. Proceedings of the 8th ACM Annual International Conference on Mobile Computing and Networking (MobiCom '02), September 2002, Atlanta, Ga, USA 59-70. CrossRef
Mundarath JC, Ramanathan P, Van Veen BD: NULLHOC: a MAC protocol for adaptive antenna array based wireless ad hoc networks in multipath environments. Proceedings of IEEE Global Telecommunications Conference (GLOBECOM '04), November 2004, Dallas, Tex, USA 5: 2765-2769. CrossRef
Ramanathan R: On the performance of ad hoc networks with beamforming antennas. Proceedings of the 2nd ACM International Symposium on Mobile Ad Hoc Networking & Computing (MobiHoc '01), October 2001, Long Beach, Calif, USA 95-105. CrossRef
Ramanathan R, Redi J, Santivanez C, Wiggins D, Polit S: Ad hoc networking with directional antennas: a complete system solution. IEEE Journal on Selected Areas in Communications 2005, 23(3):496-506. CrossRef
Choudhury RR, Yang X, Ramanathan R, Vaidya NH: On designing MAC protocols for wireless networks using directional antennas. IEEE Transactions on Mobile Computing 2006, 5(5):477-491. CrossRef
Singh A, Ramanathan P, Van Veen B: Spatial reuse through adaptive interference cancellation in multi-antenna wireless networks. Proceedings of IEEE Global Telecommunications Conference (GLOBECOM '05), November 2005, St. Louis, Mo, USA 5: 3092-3096.
Zorzi M, Zeidler J, Anderson A, et al.: Cross-layer issues in MAC protocol design for MIMO ad hoc networks. IEEE Wireless Communications 2006, 13(4):62-76. 10.1109/MWC.2006.1678167 CrossRef
Winters JH: Smart antenna techniques and their application to wireless ad hoc networks. IEEE Wireless Communications 2006, 13(4):77-83. 10.1109/MWC.2006.1678168 CrossRef
ANSI/IEEE std 802.11 : Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications. 1999.
Fakih K, Diouris JF, Andrieux G: BMAC: beamformed MAC protocol with channel tracker in MANET using smart antennas. Proceedings of the 9th European Conference on Wireless Technology (ECWT '06), September 2006, Manchester, UK 185-188.
Fakih K, Diouris J-F, Andrieux G: Analytical evaluation on the performance of ad hoc networks when using beamforming techniques. Proceedings of IEEE International Conference on Communications (ICC '08), May 2008, Beijing, China 2337-2342.
Robert Vilzmann CB: A survey on MAC protocols for ad hoc networks with directional antennas. Proceedings of 11th Networks and Applications towards a Ubiquitously Connected World: IFIP International Workshop on Networked Applications (EUNICE '05), July 2005, Madrid, Spain 187-200.
Dai H, Ng K-W, Wu M-Y: An overview of MAC protocols with directional antennas in wireless ad hoc networks. Proceedings of the 2nd International Conference on Wireless and Mobile Communications (ICWMC '06), July 2006, Bucharest, Romania 84. CrossRef
Takai M, Martin J, Bagrodia R, Ren A: Directional virtual carrier sensing for directional antennas in mobile ad hoc networks. Proceedings of the 3rd ACM International Symposium on Mobile Ad Hoc Networking & Computing (MobiHoc '02), June 2002, Lausanne, Switzerland 183-193. CrossRef
Nasipuri A, Ye S, You J, Hiromoto RE: A MAC protocol for mobile ad hoc networks using directional antennas. Proceedings of IEEE Wireless Communications and Networking Conference (WCNC '00), September 2000, Chicago, Ill, USA 3: 1214-1219. CrossRef
Korakis T, Jakllari G, Tassiulas L: A MAC protocol for full exploitation of directional antennas in ad-hoc wireless networks. Proceedings of the 4th ACM International Symposium on Mobile Ad Hoc Networking & Computing (MobiHoc '03), June 2003, Annapolis, Md, USA 98-107. CrossRef
Chen W-T, Ho T-W, Chen Y-C: An MAC protocol for wireless adhoc networks using smart antennas. Proceedings of the 11th International Conference on Parallel and Distributed Systems (ICPADS '05), July 2005, Fuduoka, Japan 1: 446-452. CrossRef
Yang J, Li J, Sheng M: MAC protocol for mobile ad hoc network with smart antennas. Electronics Letters 2003, 39(6):555-557. 10.1049/el:20030337 CrossRef
Marzetta TL, Hochwald BM: Fast transfer of channel state information in wireless systems. IEEE Transactions on Signal Processing 2006, 54(4):1268-1278. CrossRef
Swindlehurst AL, Peel C, Spencer Q: An Overview of Algorithms for Downlink Transmit Beamforming. Brigham Young University, Provo, Utah, USA; 2004.
Huang K, Andrews JG, Heath RW, Guo D, Berry RA: Spatial interference cancellation for mobile ad hoc networks: perfect CSI. Proceedings of IEEE Global Telecommunications Conference (GLOCOM '08), November-December 2008, New Orleans, La, USA 1-5.
Iltis RA, Kim S-J, Hoang DA: Noncooperative iterative MMSE beamforming algorithms for ad hoc networks. IEEE Transactions on Communications 2006, 54(4):748-759. CrossRef
Choudhury RR, Vaidya NH: Deafness: a MAC problem in ad hoc networks when using directional antennas. Proceedings the 12th IEEE International Conference on Network Protocols (ICNP '04), October 2004, Berlin, Germany 283-292.
Opnet modeler http://www.opnet.com
Bianchi G: Performance analysis of the IEEE 802.11 distributed coordination function. IEEE Journal on Selected Areas in Communications 2000, 18(3):535-547. 10.1109/49.840210 CrossRef
Wu H, Peng Y, Long K, Cheng S, Ma J: Performance of reliable transport protocol over IEEE 802.11 wireless LAN: analysis and enhancement. Proceedings the 21st Annual Joint Conference of the IEEE Computer and Communications Societies (INFCOM '02), June 2002, New York, NY, USA 2: 599-607.
Ziouva E, Antonakopoulos T: CSMA/CA performance under high traffic conditions: throughput and delay analysis. Computer Communications 2002, 25(3):313-321. 10.1016/S0140-3664(01)00369-3 CrossRef
Chatzimisios P, Boucouvalas AC, Vitsas V, Vafiadis A, Economidis A, Huang P: A simple and effective backoff scheme for the IEEE 802.11 MAC protocol. Proceedings of the International Conference on Cybernetics and Information Technologies, Systems and Applications (CITSA '05), July 2005, Orlando, Fla, USA 1: 48-53.
Zander J: Slotted ALOHA multihop packet radio networks with directional antennas. Electronics Letters 1990, 26(25):2098-2100. 10.1049/el:19901351 CrossRef
Wang Y, Garcia-Luna-Aceves JJ: Directional collision avoidance in ad hoc networks. Performance Evaluation 2004, 58(2-3):215-241. 10.1016/j.peva.2004.07.012 CrossRef
Carvalho MM, Garcia-Luna-Aceves JJ: Modeling wireless ad hoc networks with directional antennas. Proceedings of the 25th IEEE International Conference on Computer Communications (INFOCOM '06), April 2006, Barcelona, Spain 1-12.
Hu M, Zhang J: MIMO ad hoc networks with spatial diversity: medium access control and saturation throughput. Proceedings of the 43rd IEEE Conference on Decision and Control (CDC '04), December 2004, Nassau, Bahamas 3: 3301-3306.
Lo TKY: Maximum ratio transmission. IEEE Transactions on Communications 1999, 47(10):1458-1461. 10.1109/26.795811 CrossRef
- Beamforming in Ad Hoc Networks: MAC Design and Performance Modeling
- Springer International Publishing
- EURASIP Journal on Wireless Communications and Networking
Elektronische ISSN: 1687-1499
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