ISAST Transactions on No. 1, Vol. 2, 2008 (ISSN 1797-0989) Communications and Networking Regular Papers Julian Meng, and Xin Ding: Pulse-Tone Jamming Suppression for a CDMA Rake Receiver………………………………………………………….....1 Yuhua Chen and Wenjing Tang: Critical Region Analysis of Optical Burst Switching Routers with Input Fiber Delay Lines………..…………………….11 Ildoko Moussa, Jean C. Chedjou, Kyandoghere Kyamakya, and Van Doc Nguyen: Dynamics of a Secure Communication Module based on a Chaotic Synchronization……………………………………..14 Danyan Luo, Decheng Zuo, and Xiaozong Yang: IPv6 Address Assignment in Wireless Sensor Networks…………………………………………...………………….......24 H. Ramazanali, J. Olsson, J. Lönn, A. Huynh, Q. Je, and S. Gong: Evaluation of ZigBee Networking in a Campus Environment……………………………………………………..………30 Abhijeer Shirgurkar and M. I. Hayee: Transoceanic Networks for 44Gb/s WDM Transmission using π/2 Alternate-Phase RZ Modulation Format……………………………………………………………………………………………………………………....36 Shamila Makki and Subbarao Wunnava: Next Generation Networks and Code Mobility…………………………………………………………………...………..42 P. Priakanth and Dr. P. Thangaraj: A Traffic Aware Adaptive Scheduling MAC Protocol for Energy Efficiency and Fairness in Mobile Ad hoc Networks……………………………………………………………………………………………………………………48 Venkatesh Ramaswamy, Leticia Cuéllar , Stephan Eidenbenz, and Nicolas Hengartner: Analysis of Packet Dropping Behavior of Sending Rate Estimate Based Queue Management Schemes with Markovian Sources………………………………………………………………………………………........................................…..56 Marium Jalal Chaudhry, Mariam Nosheen, Farhaat Saleemi, Sadaf Tariq, and Fatima Jalal Chaudhry: Secure Wireless Communication Using Advance Encryption Standard.………………………...…..…………………….59 Danpu Liu, Jianjun Hao, and Guangxin Yue: A Best Relay Selection Scheme for Opportunistic Relaying…………………………………………………..……….......66 Peter Orosz, Janos Sztrik, Chesoong Kim: Dynamics and Congestion Control of Alternative TCP Variants on Asymmetric Lines……………………….………….71 P. Harini: An Efficient DAD Scheme for Hierarchical Mobile IPv6 Handoff……………………………………………...………...75 Caroline Fontaine, Claude Delpha, Pierre Duhamel, Abdellatif Benjelloun Touimi, Michel Milhau, Alain Le Guyader, Christophe Giraud, Patrice Martin, David Azemard, and Jean-Bernard Fischer: An end-to-end security architecture for multimedia content distribution on mobile phones………………………………81 Tadamichi Suzuki, Jungo Ito, Kazushi Nakano, Kohji Higuchi, and Tetsuya Miki: New Insight for Robust IP Traffic Control Based on Network Behavior Knowledge…………………………………….92 Yanyan Song, Decheng Zuo, Xiaozong Yang, Gang Cui: ERAD: an Energy-based Radius self-Adaptive Distributed Topology Control Algorithm in Wireless Sensor Networks……………………………………………………………………………….....102 Hong Wu, Yingxin Zhao, Lijun Ge, Zhijiang Zhou, and Weiyi Tan: An Efficient Joint Algorithm of Synchronization, Channel Estimation and the Low Peak-to-Average Power ratio of OFDM System………………………………………………………………………………….…………………………107