Seamless Handoff of Ping-Pong Calls in Mobile Wimax Networks

  • Balu Sridevi
  • G. V. Shirley Julia
  • S. Rajaram
Part of the Communications in Computer and Information Science book series (CCIS, volume 420)


Wireless Networking is a promising technology that allows users to access a broad range of information and applications. The global boom in the number of users of the global internet has led to the development of fixed and mobile broadband technologies providing support for high speed streaming multimedia and unhampered quality of service. WiMAX technology given by IEEE 802.16e is one such technology that offers promising features in terms of high bandwidth, extended coverage area and low cost. WiMAX also suffers from certain issues like handoff delay and security threats. The ping-pong effect occurs due to the frequent movement of mobile units between the two Base Stations (BS) and thus experiences unwanted handoff delay at both BS. This paper proposes the algorithm for identification of ping-pong calls from normal re-entries, process them separately such that the handoff delay and resource wastage due to ping-pong calls are reduced. The proposed algorithm deals with caching of the key and uplink mapping parameters for the ping-pong users in order to reduce the overhead of the long network entry process. The network model was developed using Network Simulator and the algorithm was implemented in MATLAB GUIDE which gets connected to the database developed in MYSQL.


WiMAX Handover Ping-pong Authentication IEEE 802.16e 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Balu Sridevi
    • 1
  • G. V. Shirley Julia
    • 1
  • S. Rajaram
    • 2
  1. 1.Department of ECEVelammal College of Engineering and TechnologyIndia
  2. 2.Department of ECEThiagarajar College of EngineeringIndia

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