The Community for Technology Leaders
RSS Icon
Subscribe
Issue No.09 - Sept. (2013 vol.12)
pp: 1814-1827
Goutam K. Audhya , BSNL, Kolkata
Koushik Sinha , Hewlett Packard Labs, Bangalore
Kalikinkar Mandal , University of Waterloo, Waterloo
Rana Dattagupta , Jadavpur University, Kolkata
Sasthi C. Ghosh , Indian Statistical Institute, Kolkata
Bhabani P. Sinha , Indian Statistical Institute, Kolkata
ABSTRACT
This paper presents a novel method for solving channel assignment problems (CAPs) in hexagonal cellular networks with nonhomogeneous demands in a 2-band buffering system (where channel interference does not extend beyond two cells). The CAP with nonhomogeneous demand is first partitioned into a sequence of smaller subproblems, each of which has a homogeneous demand from a subset of the nodes of the original network. Solution to such a subproblem constitutes an assignment phase, where multiple homogeneous demands are assigned to the nodes corresponding to the subproblem, satisfying all the frequency separation constraints. The whole assignment process for the original network consists of a succession of multiple homogeneous assignments for all the subproblems. Based on this concept, we present a polynomial time approximation algorithm for solving the CAP for cellular networks having nonhomogeneous demands. Our proposed assignment algorithm, when executed on well-known benchmark instances, comes up with an assignment which is always within about 6 percent more than the optimal bandwidth, but requires a very small execution time (less than 5 millisecond on a HPxw8400 workstation). The proposed algorithm is very much suitable for real-life situations, where fast channel assignment is of primary importance, tolerating, however, a marginal deviation (6 percent) from the optimal bandwidth.
INDEX TERMS
Benchmark testing, Bandwidth, Mobile computing, Interference, Mobile communication, Workstations, Vectors, optimal bandwidth, Cellular networks, channel assignment, 2-band buffering, nonhomogeneous demands
CITATION
Goutam K. Audhya, Koushik Sinha, Kalikinkar Mandal, Rana Dattagupta, Sasthi C. Ghosh, Bhabani P. Sinha, "A New Approach to Fast Near-Optimal Channel Assignment in Cellular Mobile Networks", IEEE Transactions on Mobile Computing, vol.12, no. 9, pp. 1814-1827, Sept. 2013, doi:10.1109/TMC.2012.153
REFERENCES
[1] W.K. Hale, "Frequency Assignment: Theory and Application," Proc. IEEE, vol. 68, no. 12, pp. 1497-1514, Dec. 1980.
[2] D. Beckmann and U. Killat, "A New Strategy for the Application of Genetic Algorithms to the Channel Assignment Problem," IEEE Trans. Vehicular Technology, vol. 48, no. 4, pp. 1261-1269, July 1999.
[3] C.Y. Ngo and V.O.K. Li, "Fixed Channel Assignment in Cellular Radio Networks Using a Modified Genetic Algorithm," IEEE Trans. Vehicular Technology, vol. 47, no. 1, pp. 163-172, Feb. 1998.
[4] C.W. Sung and W.S. Wong, "Sequential Packing Algorithm for Channel Assignment under Co-Channel and Adjacent-Channel Interference Constraint," IEEE Trans. Vehicular Technology, vol. 46, no. 3, pp. 676-686, Aug. 1997.
[5] W.K. Lio and G.G. Coghill, "Channel Assignment Through Evolutionary Optimization," IEEE Trans. Vehicular Technology, vol. 45, no. 1, pp. 91-96, Feb. 1996.
[6] J.S. Kim, S.H. Park, P.W. Dowd, and N.M. Nasrabadi, "Channel Assignment in Cellular Radio Using Genetic Algorithm," Wireless Personal Comm., vol. 3, no. 3, pp. 273-286, Aug. 1996.
[7] N. Funabiki and Y. Takefuji, "A Neural Network Parallel Algorithm for Channel Assignment in Cellular Radio Network," IEEE Trans. Vehicular Technology, vol. 41, no. 4, pp. 430-437, Nov. 1992.
[8] G. Chakraborty, "An Efficient Heuristic Algorithm for Channel Assignment Problem in Cellular Radio Networks," IEEE Trans. Vehicular Technology, vol. 50, no. 6, pp. 1528-1539, Nov. 2001.
[9] S.C. Ghosh, B.P. Sinha, and N. Das, "A New Approach to Efficient Channel Assignment for Hexagonal Cellular Networks," Int'l J. Foundations of Computer Science, vol. 14, no. 3, pp. 439-463, June 2003.
[10] S.C. Ghosh, B.P. Sinha, and N. Das, "Channel Assignment Using Genetic Algorithm Based on Geometric Symmetry," IEEE Trans. Vehicular Technology, vol. 52, no. 4, pp. 860-875, July 2003.
[11] S.C. Ghosh, B.P. Sinha, and N. Das, "Coalesced CAP: An Improved Technique for Frequency Assignment in Cellular Networks," IEEE Trans. Vehicular Technology, vol. 55, no. 2, pp. 640-653, Mar. 2006.
[12] R. Battiti, A. Bertossi, and D. Cavallaro, "A Randomized Saturation Degree Heuristic for Channel Assignment in Cellular Radio Networks," IEEE Trans. Vehicular Technology, vol. 50, no. 2, pp. 364-374, Mar. 2001.
[13] D.-W. Tcha, J.-H. Kwon, T.-J. Choi, and S.-H. Oh, "Perturbation-Minimizing Frequency Assignment in a Changing TDMA/FDMA Cellular Environment," IEEE Trans. Vehicular Technology, vol. 49, no. 2, pp. 390-396, Mar. 2000.
[14] J.S. Kim, S.H. Park, P.W. Dowd, and N.M. Nasrabadi, "Cellular Radio Channel Assignment Using a Modified Hopfield Network," IEEE Trans. Vehicular Technology, vol. 46, no. 4, pp. 957-967, Nov. 1997.
[15] W. Wang and C.K. Rushforth, "Local Search for Channel Assignment in Cellular Mobile Networks," DIMACS Series in Discrete Math. and Theoretical Computer Science, vol. 35, pp. 689-709, 1997.
[16] K.N. Sivarajan, R.J. McEliece, and J.W. Ketchum, "Channel Assignment in Cellular Radio," Proc. IEEE 39th Vehicular Technology Conf., pp. 846-850, May 1989.
[17] T.-M. ko, "A Frequency Selective Insertion Strategy for Fixed Channel Assignment," Proc. IEEE Fifth Int'l Symp., Personal, Indoor and Mobile Radio Comm., pp. 311-314, Sept. 1994.
51 ms
(Ver 2.0)

Marketing Automation Platform Marketing Automation Tool