Performance Evaluation of Authentication Certificate Based Seamless Vertical Handoff in GPRS-WLAN. - Muhammad Usman 001; Surraya Khanum; Wajahat Noshairwan; Ehtsham Irshad; Azeem Irshad (HPCA (China), 2009)

Security Enhancement for Authentication of Nodes in MANET by Checking the CRL Status of Servers. - Azeem Irshad; Wajahat Noshairwan; Muhammad Shafiq 002; Shahzada Khurram; Ehtsham Irshad; Muhammad Usman 001 (SUComS, 2010)

Performance Evaluation Analysis of Group Mobility in Mobile Ad Hoc Networks. - Ehtsham Irshad; Wajahat Noshairwan; Muhammad Shafiq 002; Shahzada Khurram; Azeem Irshad; Muhammad Usman 001 (SUComS, 2010)