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Electronics and Telecommunications Research Institute (한국전자통신연구원)
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Handover Ranging Power Adjustment Using Uplink Channel Information in IEEE 802.16e/m

  • Kim, Ji-Su (School of Electrical and Computer Engineering, Ajou University) ;
  • Kim, Jae-Hyun (School of Electrical and Computer Engineering, Ajou University)
  • Received : 2010.05.14
  • Accepted : 2010.07.26
  • Published : 2010.10.31
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Abstract

This letter proposes a handover ranging power adjustment scheme to improve handover performance. Incorrect ranging power can degrade handover performance due to the increased handover latency; therefore, the proposed scheme exploits the uplink channel information to adjust the uplink handover ranging power. Simulation results demonstrate that the proposed scheme reduces call outage probability by 33% compared to that of the conventional scheme. It also improves the number of users who satisfy the system requirements for handover interruption time.

Keywords

References

  1. IEEE Std. $802.16e^{TM}$-2005, "IEEE Standard for Local and Metropolitan Area Networks, Part 16: Air Interface for Fixed Broadband Wireless Access Systems, Amendment 2: Physical and Medium Access Control Layers for Combined Fixed and Mobile Operation in Licensed Bands and Corrigendum 1," Feb. 2006.
  2. D.H. Lee, K. Kyamaka, and J.P. Umondi, "Fast Handover Algorithm for IEEE 802.16e Broadband Wireless Access System," Proc.1st Int. ISWPC, Phuket, Thailand, Jan. 2006.
  3. H. Fattah and H. Alnuweiri, "A New Handover Mechanism for IEEE 802.16e Wireless Networks," IWCMC, Aug. 2008, pp. 661-665.
  4. S. Cho et al., "Hard Handoff Scheme Exploiting Uplink and Downlink Signals in IEEE 802.16e Systems," VTC, Sept. 2006, pp.1236-1240.
  5. Attar et al., Handover Mechanism that Exploits Uplink Channel Quality of a Target Cell, PCT/US2008/05760, to QUALCOMM Incorporated, Sept. 2008.
  6. WiMAX System Evaluation Methodology, V1.0, Jan., 2007, WiMAX Forum.

Cited by

  1. A Handover Mechanism Considering the Abstracted R-Factor vol.63, pp.6, 2010, https://doi.org/10.1109/tvt.2013.2294963