A New Scheme for Seamless Inter-Cluster Handoffs in Wireless ATM Networks

  • Authors:

  • Jung-Hee Ryu;Dong-Ho Cho;Bongsue Suh;Byung-Cheol Shin

  • Affiliations:

  • The Department of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and Technology (KAIST), Taejon, Korea E-mail: ryu@ee.kaist.ac.kr;The Department of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and Technology (KAIST), Taejon, Korea E-mail: dhcho@ee.kaist.ac.kr;Electronics and Telecommunications Research Institute, Taejon, Korea E-mail: b.suh@ieee.org;The School of Electrical and Electronics Engineering, Chungbuk National University, Cheongju, Chungbuk, Korea E-mail: bcshin@engine.chungbuk.ac.kr

  • Venue:
  • Wireless Personal Communications: An International Journal
  • Year:
  • 2002

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Abstract

Many schemes to reduce the inter-cluster handoff delay in wireless ATMnetworks have been proposed, but the previous schemes waste relativelylarge network resources to decrease the path rerouting delay. In thispaper, we propose the 2-layered cluster concept, where the seamlessinter-cluster handoff can be supported regardless of path reroutingtime. As a result, the waste of wired resources and the rate of theinter-cluster handoff can be reduced. From the performance analysisand simulation, the inter-cluster handoff rate for non-real-timetraffic is only about 1/3 of the conventional result. Suchadvantageous features of the proposed scheme neither incur anyincrease of the total handoff rate nor require additional ATMswitches.