An April 2005 symposium highlighted the latest work in the field in areas including performance modeling and optimization, security and cooperation issues, power control and resource management, infrastructure WLANs, ad hoc and sensor networks, routing and mobility, autonomic and situated communications, and minimum energy broad-casting. Specific topics include energy saving dynamic source routing for ad hoc wireless networks, minimizing delay in loss- tolerant MAC layer multicast, and a simulation tool to evaluate radio resource management algorithms for enhanced UMTS. Other subjects are distributed power allocation and scheduling for parallel channel wireless networks, and a novel call admission control in multiservice wireless LANs. There is no subject index.