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- Title
Resource Reservation to Support Service Continuity in OFDMA Systems.
- Authors
Jongchan Lee; Moonho Lee
- Abstract
When the load in a multi-cell orthogonal frequency division multiple access (OFDMA) system is allowed to excessively increase in face of frequent handover, the cell area becomes smaller than the designed size, and thus continuity of quality of service (QoS) for handover requests cannot be guaranteed. To efficiently support the mobility of a mobile terminal (MT), we should adaptively cope with the resource demand of handover calls. This paper proposes a twofold resource-reservation scheme for OFDMA systems to guarantee continuity of QoS for various mobile multimedia services during MT handover from lightly to heavily loaded cells. Our twofold scheme attempts to guarantee service continuity for handover and to maximize resource allocation efficiency. We performed a simulation to evaluate our scheme in terms of outage probability, handover failure rate, total throughput, and blocking rate.
- Subjects
ORTHOGONAL frequency division multiplexing; INFORMATION services; QUALITY of service; MULTIMEDIA systems; MOBILE computing; RESOURCE allocation
- Publication
KSII Transactions on Internet & Information Systems, 2014, Vol 8, Issue 12, p4356
- ISSN
1976-7277
- Publication type
Article
- DOI
10.3837/tiis.2014.12.007