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Improving coverage-capacity tradeoff and power consumption of TDMA-CDMA by coverage-dependent timeslot allocation

Nasrabadi, H ; Sharif University of Technology | 2008

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  1. Type of Document: Article
  2. DOI: 10.1109/WiMob.2008.69
  3. Publisher: 2008
  4. Abstract:
  5. Cellular CDMA systems have to trade user capacity to increase cell coverage. Moreover, coverage of CDMA is uplink-limited because uplink channels are not orthogonal and transmit powers of mobile stations are limited. In this paper, we propose a coverage-dependent dynamic channel allocation (DCA) method for TDMA-CDMA. In this method, different uplink timeslots have different level of coverage-capacity tradeoff, i.e., Non-Homogeneous Coverage-Capacity Tradeoff (NHCCT). This method reduces uplink power consumption and improves coverage-capacity tradeoff, compared to Load Balancing DCA method. Finally, we verify our approach by numerical analysis and simulation. © 2008 IEEE
  6. Keywords:
  7. Cell coverages ; Cellular CDMA systems ; Coverage-capacity tradeoff ; DCA ; Dca methods ; Dynamic channel allocations ; Fairness ; Load balancing ; Mobile stations ; Power consumptions ; Time slot allocations ; Time slots ; Transmit powers ; Uplink channels ; User capacities ; Code division multiple access ; Communication channels (information theory) ; Electric power utilization ; Numerical analysis ; Time division multiple access ; Wireless networks ; Mobile computing
  8. Source: 4th IEEE International Conference on Wireless and Mobile Computing, Networking and Communication, WiMob 2008, Avignon, 12 October 2008 through 14 October 2008 ; 2008 , Pages 266-271 ; 9780769533933 (ISBN)
  9. URL: https://ieeexplore.ieee.org/document/4654247