Performance enhancement of DS-CDMA PCS cellular networks with smart antennas

Tsoulos, George V.; Beach, M.A.; Swales, SC

doi:10.1109/glocom.1995.500354

Cited by 11 publications

(1 citation statement)

References 9 publications

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“…Many methods have been proposed to address this problem, such as cell splitting [1], channel borrowing [1], [3], channel sharing [4], dynamical channel allocation [5]- [7], new soft handover schemes [8], [9], etc. The applications of smart antennas in cellular networks are also widely investigated, such as [10]- [12]. However, most work related to traffic load balancing only focuses on different radio channel allocation schemes, and most work on smart antennas only considers the radio propagation channels within one cell.…”

Section: Introductionmentioning

confidence: 99%

A bubble oscillation algorithm for distributed geographic load balancing in mobile networks

Biaham

Cuthbert

Ieee Infocom 2004

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Abstract-This paper investigates a new load balancing scheme for mobile networks that changes cellular coverage according to the geographic traffic distribution in real time. The performance of the whole cellular network is improved by contracting the antenna pattern around a traffic "hot spot" and expanding adjacent cells coverage to fill in the coverage loss. This is essentially a constrained multidimensional optimization problem. A novel bubble oscillation algorithm is proposed to address this problem. Any un-served traffic in the network is absorbed by the geographic load balancing in a similar way that a vacuum between bubbles is filled by bubble oscillations. Simulations have been performed to evaluate the system performance for different traffic scenarios, and the results are presented. Some discussions on this algorithm are also presented. The bubble oscillation algorithm described has the potential of being used in other similar multidimensional resource allocation problems.

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