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In cellular networks, cells are grouped more densely around highly populated areas to provide more capacity. Antennas are pointed in accordance with local terrain and clutter to reduce signal shadows and interference. Hardware parameters are easily set during installation but difficult to change thereafter. In a dynamic environment of population migration, there is need to continuously tune network parameters to adapt the network performance. Modern mobile equipment logs network usage patterns and statistics over time. This information can be used to tune soft parameters of the network. These parameters may include frequency channel assignment or reuse, and transmitter radiation power assignment to provide more capacity on demand. The paper proposes that by combining the frequency and power assignments, further optimisation in resource allocation can be achieved over a traditional frequency assignment. The solution considers the interference, traffic intensity and use of priority flags to bias some edges. An Edge Weight Power and Frequency Assignment Algorithm is presented to solve the resource allocation problem in cellular networks. The paper also analyses the performance improvements obtained over that of the Edge Weight Frequency Assignment Algorithm. The results show that the proposed algorithm improves the performance of the Edge Weight Frequency Assignment Algorithm depending on the initial structure of the graph.
Rocznik
Tom
Strony
679--685
Opis fizyczny
Bibliogr. 8 poz., wykr.
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autor
- Botswana Unified Revenue Service, Gaborone, Botswana
autor
- University of Botswana, Gaborone, Botswana
autor
- Botswana Institute for Technology Research and Innovation, Gaborone, Botswana
Bibliografia
- [1] O. Pharatlhatlhe, J.S.J. Daka and E. Gower, ”Cellular Cluster Channel Allocation Using an Edge Weight Frequency Assignment Algorithm”, Journal of Electrical and Electronic Systems, vol. 7, no. 3, 2018, DOI:10.4172/2332-0796.1000272.
- [2] S. Argawal, S. Krishnamurthy, R. Katz, and S. Dao, Distributed Power Control in Ad-Hoc Wireless Networks, 2001: IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, Vol.2, pp. 59-66.
- [3] Z. Rosberg, Fast Power Control in Cellular Networks Based on Short-Term Correlation of Rayleigh Fading, 1996: Proc 6th WINLAB Workshop on Third Generation Wireless Information Networks, pp 159-182.
- [4] S. Jagannathan, A. Chronopoulos and S. Ponipireddy, Distributed Power Control in Wireless Communication Systems, 2002: Eleventh International Conference on Computer Communications and Networks, ISSN 1095-2055, pp. 493-496.
- [5] C.Y. Lee and T. Park, A Parametric Power Control with Fast Convergence in Cellular Radio Systems, 1998: Vehicular Technology, IEEE Transactions, vol. 47, no. 2, pp. 440-449.
- [6] Zander J., Transmitter Power Control for Co-channel Interference Management in Cellular Radio Systems, 1992: Vehicular Technology, IEEE Transactions, vol. 41, no. 1, pp. 57-62.
- [7] A. Pattavina and A. Parini, ”Modelling Voice Call Interarrival and Holding Time distributions in Mobile Network”, Beijing University of Posts and Telecommunications Press, pp. 729738, 2005.
- [8] Y. Okumura et al., Field Strength and Its Variability in VHF and UHF Land-Mobile Radio Service, 1968: Review of the Electrical Communications Laboratory, vol. 16, no. 9-10, pp. 825-873.
Typ dokumentu
Bibliografia
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bwmeta1.element.baztech-2fc85d89-e120-41c0-992b-dfff7fdf7f52