Statistical Multiplexing Based RFH-OFDMA System for Improving Downlink User Capacity 


Vol. 30,  No. 7, pp. 578-586, Jul.  2005


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  Abstract

We propose a random frequency hopping orthogonal frequency division multiple access (RFH-OFDMA) system based on statistical multiplexing for improving downlink user capacity. User capacity is defined as the maximum number of users served with a given basic data-rate in a cell. We compare the downlink user capacity of the proposed RFH-OFDMA system with that of the conventional frequency hopping OFDMA (FH-OFDMA) systems in the worst case where all users are located at the cell boundary. User capacity is limited by either the number of subcarriers or other-cell interference (OCI). Simulation results show that the proposed RFH-OFDMA system can accommodate 262 users in a 3-sectored cell, while the conventional FH-OFDMA systems can accommodate 51 users, when the user channel activity and the required Eb/I0 are 0.1 and 6 dB, respectively, and all users are assumed to be located at the cell boundary.

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  Cite this article

[IEEE Style]

B. C. Jung, H. J. Lee, D. K. Sung, "Statistical Multiplexing Based RFH-OFDMA System for Improving Downlink User Capacity," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 7, pp. 578-586, 2005. DOI: .

[ACM Style]

Bang Chul Jung, Hyung Jin Lee, and Dan Keun Sung. 2005. Statistical Multiplexing Based RFH-OFDMA System for Improving Downlink User Capacity. The Journal of Korean Institute of Communications and Information Sciences, 30, 7, (2005), 578-586. DOI: .

[KICS Style]

Bang Chul Jung, Hyung Jin Lee, Dan Keun Sung, "Statistical Multiplexing Based RFH-OFDMA System for Improving Downlink User Capacity," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 7, pp. 578-586, 7. 2005.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880