MADF: a novel approach to add an ad-hoc overlay on a fixed cellular infrastructure
- 11 November 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 2 (15253511) , 549-554
- https://doi.org/10.1109/wcnc.2000.903912
Abstract
In a cellular system, if there are too many data users in a cell, which we refer to as a hot cell, data may suffer large delay, and system's quality of service (QoS) may degrade. A dynamic channel-allocation scheme assigns more channels to those hot cells under centralized control (CC). In mobile-assisted data forwarding (MADF), we add an ad-hoc overlay to the fixed cellular infrastructure and special channels-called forwarding channels-are used to connect users in a hot and its surrounding cold cells without going through the hot cell's base station. The forwarding-channel management in MADF is done by the mobile units themselves to relieve the load on the CC. We find that, using MADF, under a certain delay requirement, the system performance can be greatly improved.Keywords
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