Multiservice allocation for multiaccess wireless systems
2005 (English)In: IEEE Transactions on Wireless Communications, ISSN 1536-1276, E-ISSN 1558-2248, Vol. 4, no 1, 174-184 p.Article in journal (Refereed) Published
This paper discusses principles for allocating multiple bearer services onto different subsystems in multiaccess wireless systems. Based on the included subsystem's multiservice capacities, under certain constraints near-optimum subsystem service allocations that maximize combined multiservice capacity are derived through simple optimization procedures. These favorable service allocations are either extreme points where services, as far as possible, are allocated to the subsystems best at supporting them, or they are characterized by the relative efficiency of supporting services being equal in all subsystems. The consequences of this include that services should typically be mixed in subsystems with convex capacity regions and isolated in subsystems with concave capacity regions. Simple user assignment algorithms based on this are also discussed. Additionally, illustrating the main findings of the analysis, some system examples are given, including a case study with combined global system for mobile communications (GSM) and wideband code-division multiple-access (WCDMA) systems. The gain of using the proposed service allocation principles compared to a reference case of maintaining equal service mixes in all subsystems depends on the shape of the subsystem capacity regions; the more different the capacity regions, the larger the gain. In the GSM and WCDMA case study, capacity gains of up to 100% in terms of supported data users for a fixed voice traffic load are achieved.
Place, publisher, year, edition, pages
2005. Vol. 4, no 1, 174-184 p.
global system for mobile communications, (GSM)/EDGE, load sharing, multiaccess, multiservice, wideband code-division multiple access (WCDMA), networks
IdentifiersURN: urn:nbn:se:kth:diva-14466DOI: 10.1109/twc.2004.840243ISI: 000226347600020ScopusID: 2-s2.0-19944363187OAI: oai:DiVA.org:kth-14466DiVA: diva2:332507
QC 201005252010-08-052010-08-052011-09-30Bibliographically approved