iCAR: an integrated cellular and ad-hoc relay system
- 8 November 2002
- proceedings article
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
Ever increasing data trafficand limited capacity are major causes for congestion in current cellular systems. This paper presents a new architecture for the next generation wireless systems based on the integration of the cellular infrastructure and modern Ad-hoc relaying technologies. The new archi- tecture can efficientlybalance trafficloads between cells by using Ad-hoc relay stations (ARS) to relay trafficfrom one cell to another cell dynamically. This can not only increase a system' s capacity cost-effectively, but also reduce transmis- sion power for mobile hosts, and provide services for shadow areas. In this paper, we present the architectural concept in- cluding its basic operations and principle benefits. We also propose a seed-growing approach for ARS placement, and discuss the upper bound on the number of seed ARS's needed in the system. We evaluate the performance improvement of the new architecture through analysis and simulations.Keywords
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