Thisbookcontainstherefereedproceedingsofthe1stIFIP-TC6WorkingCon- rence on Wireless-On-Demand Network Systems, WONS 2004. It was sponsored by the IFIP Working Groups 6.3 (Performance of Computer and Commu- cation Networks)and6.8(Mobile and Wireless Communications), and aimed at becoming a premier international forum for discussions between researchers and practitioners interested in the evolution of Wireless Internet Access toward on-demand networking. Ad hoc, routing, localization, resource management, - curity, applications, performance and analytical models were topics covered in depth by technical papers in this book. Theconferencereceived77submissionsfrom22countries,showingthewor- wide interest. With so many papers to choose from, the Technical Program Committee's job, providing a conference program with the highest quality, was challenging and time consuming. We ?nally selected 25 full papers for presen- tion in the conference technical sessions. To give researchers the opportunity to present the novel ideas they are starting to explore, we included in the technical program a poster session devoted to presenting preliminary research results: 7 short papers were selected for presentation in this session. Accepted papers and posters came from 15 di?erent countries. The technical program also included a keynote speech "Ad Hoc Wireless Networks: Protocols and Applications" by Prof. Mario Gerla, and a panel s- sion devoted to the discussion of the conference topics between academics and industry representatives. This event would not have been possible without the enthusiasm and hard work of a number of colleagues. A special thanks to the TPC members, and all the referees, for their invaluable help in reviewing the papers for WONS 2004.

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Localization and Mobility Management.- Markov Localization of Wireless Local Area Network Clients.- A Topology Based Localization in Ad Hoc Mobile Sensor Networks.- Grcmob: A Group Mobility Pattern Generator to Evaluate Mobile Ad Hoc Networks Performance.- Activity-Based User Modeling in Service-Oriented Ad-Hoc-Networks.- MAC and Radio Resource Management.- Media Access Control Schemes for Mobile Ad Hoc Networks.- Throughput Evaluation and Enhancement of TCP Clients in Wi-Fi Hot Spots.- An Adaptive IEEE 802.11 MAC in Multihop Wireless Ad Hoc Networks Considering Large Interference Range.- A Distributed Algorithm for Bandwidth Allocation in Stable Ad Hoc Networks.- Bluetooth Scatternets.- Locally Optimal Scatternet Topologies for Bluetooth Ad Hoc Networks.- An On-Demand Bluetooth Scatternet Formation Algorithm.- Ad Hoc Routing I.- GPS-Based Route Discovery Algorithms for On-Demand Routing Protocols in MANETs.- Dynamic AODV Backup Routing in Dense Mobile Ad-Hoc Networks.- Multipath Power Sensitive Routing Protocol for Mobile Ad Hoc Networks.- Security, Applications, and Service Support.- Dependable and Secure Data Storage in Wireless Ad Hoc Networks: An Assessment of DS2.- A Comparative Analysis on Performance of Mobile IP with Paging Support.- Preventive and Corrective Protection for Mobile Ad Hoc Network Routing Protocols.- Dynamic Service Adaptation for Runtime System Extensions.- Ad Hoc Routing II.- Flood Filtering and Route Selection for Energy-Efficient On-Demand Routing in Wireless Ad Hoc Networks.- High Throughput Route Selection in Multi-rate Ad Hoc Wireless Networks.- A Three-Tier Framework Supporting Soft QoS Routing in MANET.- MAC Analytical Models.- Achieving Maximum Throughput and Service Differentiation by Enhancing the IEEE 802.11 MAC Protocol.- Throughput of the Multi-hop Slotted Aloha with Multi-packet Reception.- On Demand Internet Access.- WIDE: Wireless Information Delivery Environment in Distributed Hot Spots.- Smart Wireless Access Points for Pervasive Computing.- NAT-Based Internet Connectivity for On-Demand Ad Hoc Networks.- Poster Session.- Efficient Management of Domain Foreign Agents in Mobile Computing Environment Using Load Balance.- Node Synchronization Based Redundant Routing for Mobile Ad-Hoc Networks.- A New Backoff Algorithm to Guarantee Quality of Service over IEEE 802.11 Wireless Local Area Networks.- A Light Protocol for Distance Estimation in Bluetooth Mobile Ad-Hoc Networks.- Access Router Discovery and Selection in Advanced Wireless Networks.- Enhancing HIPERLAN/2 Security Aspects.- Analytical Modeling of a Traffic Differentiation Strategy for 802.11.