Hand-Off Performance of the Integrated Cellular and Ad Hoc Relaying (iCAR) System |
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| Authors: | Hongyi Wu Swades De Chunming Qiao Evsen Yanmaz Ozan K Tonguz |
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| Affiliation: | (1) The Center for Advanced Computer Studies, University of Louisiana at Lafayette, P.O. Box 44330, Lafayette, LA, 70504;(2) Department of Electrical and Computer Engineering, New Jersey Institute of Technology, 323 Martin Luther King Blvd, Newark, NJ, 07102;(3) Computer Science and Engineering Department, University of State University of New York at Buffalo, 201 Bell Hall, Buffalo, NY, 14260;(4) Electrical and Computer Engineering Department, Carnegie Mellon University, Pittsburgh, PA, 15213 |
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| Abstract: | In this paper, we study the hand-off performance of a wireless system with heterogeneous technologies called iCAR (Integrated Cellular and Ad hoc Relaying). In iCAR, hand-offs can occur not only from a Base Transceiver Station (BTS) to another BTS, but also from a BTS to a so-called Ad hoc Relaying Station (ARS) in the form of relaying, as well as from an ARS back to a BTS. The latter two types of hand-offs effectively increase the hand-off buffer time and thus reduce the call dropping probability. We develop an analytical model for the hand-off performance in iCAR. In addition, we verify the analytical model via simulations and quantify the hand-off performance benefits of the iCAR system over conventional cellular systems. It is anticipated that the analytical and simulation models reported in this paper will serve as a guideline to other researches on the inter-system hand-off involving heterogenous wireless technologies. |
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| Keywords: | iCAR ad hoc relaying cellular networks hand-off performance evaluation |
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