An Adaptive Hot-spot Operating Scheme in Vertically Overlaid OFDMA Wireless Systems 


Vol. 30,  No. 7, pp. 620-627, Jul.  2005


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  Abstract

We develop an adaptive hot-spot operating scheme(AHOS) to mitigate the negative effects from the nonuniform distribution of user location and the variation in the mixture of QoS requirements in OFDMA downlink systems. The base station in a macrocell can control the operation of picocells within the cell, and turns on or off according to the changes in the estimated user outage probability and the AHOS gain parameter. With the computer simulation, the AHOS has been proved to maximize the system throughput while maintaining the QoS outage probability very low under various system scenarios.

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  Cite this article

[IEEE Style]

H. Choi, H. Chung, N. Kim, "An Adaptive Hot-spot Operating Scheme in Vertically Overlaid OFDMA Wireless Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 7, pp. 620-627, 2005. DOI: .

[ACM Style]

Hye-Sun Choi, Hee-Jeong Chung, and Nak-Myeong Kim. 2005. An Adaptive Hot-spot Operating Scheme in Vertically Overlaid OFDMA Wireless Systems. The Journal of Korean Institute of Communications and Information Sciences, 30, 7, (2005), 620-627. DOI: .

[KICS Style]

Hye-Sun Choi, Hee-Jeong Chung, Nak-Myeong Kim, "An Adaptive Hot-spot Operating Scheme in Vertically Overlaid OFDMA Wireless Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 7, pp. 620-627, 7. 2005.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880