Applications are invited for a number of PhD positions at the Hamilton Institute, National University of Ireland Maynooth, Co. Kildare, Ireland. Candidates should have an outstanding academic record. We currently have opportunities in the following areas: 1. 802.11 Wireless Networks Topics of interest include Interference management, opportunistic routing and throughput optimisation in multi-hop wireless mesh networks. Cross-layer interactions between link adaptation, MAC scheduler, routing and transport layers and related topics. 2. TCP & Network Congestion Control Application of dynamics systems theory to internet and related network congestion control problems. This includes decentralised design and adaptation techniques for TCP; stability, convergence, efficiency and fairness issues; novel protocols for heterogeneous networks including wireless links. Also the development of new models and measurement techniques tailored including design of network experiments; dynamic modelli...