Speed-Sensitive Handover Scheme over IEEE 802.16 Multi-Relay Networks
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Multi-Relay Networks should accommodate mobile users of various speeds. The cellular system should meet the minimum residency time requirements for handover calls while considering an efficient use of available channels. In this paper, we design speed-sensitive handover under dynamic hierarchical cellular systems, in which mobile users are classified according to the mean speed of mobile users and each class has its cellular layer. In order to meet the minimum residency time, the cell size of each cellular layer is dynamically determined depending on the distributions of mean speeds of mobile users. Since the speed-dependent non-preferred cell can provide a secondary resource, overflow and take-back schemes are adopted in the system. We develop analytical models to study the performance of the proposed system, and show that the optimal cell size improves the blocking probability.
Abstract
Multi-Relay Networks should accommodate mobile users of various speeds. The cellular system should meet the minimum residency time requirements for handover calls while considering an efficient use of available channels. In this paper, we design speed-sensitive handover under dynamic hierarchical cellular systems, in which mobile users are classified according to the mean speed of mobile users and each class has its cellular layer. In order to meet the minimum residency time, the cell size of each cellular layer is dynamically determined depending on the distributions of mean speeds of mobile users. Since the speed-dependent non-preferred cell can provide a secondary resource, overflow and take-back schemes are adopted in the system. We develop analytical models to study the performance of the proposed system, and show that the optimal cell size improves the blocking probability.
참고문헌 (9)
- R Steven W. Peters, "The Future of WiMAX: Multihop Relaying with IEEE 802.16j", IEEE Communications Magazine, 47(1), pp.104~111 (2009)
- R.Pabst, "Relay-based deployment concepts for wireless and mobile broadband radio", IEEE Commun. Mag, 42(9), pp.80~89 (2004)
- "Part16: Air Interface for Fixed and Mobile Broadband WirelessAccess Systems – Multihop Relay Specification", IEEE 802.16j Baseline Document for Draft Standard (2007)
- Sunghyun Cho, "Relay assisted soft handover in multihop cellular networks", Proceedings of the 2nd international conference on Ubiquitous information management and communication (2008)
- Li Yun, "A Fast Handover Scheme in IEEE802.16 Relay Networks", Proceedings of 2010 Second International Conference on Future Networks (2010)
- Sik Choi, "Fast Handover Scheme for Real-Time Downlink Ser-vices in IEEE 802.16e BWA System", IEEE VTC 2005 spring, 3, pp.2028~2032 (2005)
- K. L. Yeung, "Channel Management in Microcell", Macrocell Cellular Radio Systems, 1996, pp.45(4), ~
- J. McNair, "An Inter-system handover technique for the IMS-2000 System", Proc. IEEE INFOCOM'00, pp.208~216 (2000)
- B.Jabbari, "Teletraffic Modling and Analysis of Flexible Hierarchical Cellular Networks with Speed-Sensitive Handover Strategy", IEEE J. Select. Areas Commun, 15(8), pp.1539~1548 (1997)