• Capacity Enhancement Using Throw-Boxes in Mobile Delay Tolerant Networks 

      Zhao, Wenrui; Chen, Yang; Ammar, Mostafa H. (Mostafa Hamed); Corner, Mark D.; Levine, Brian; Zegura, Ellen W. (Georgia Institute of Technology, 2006)
      Delay tolerant networks (DTNs) are a class of emerging networks that are subject to frequent and long-duration partitions. Due to intermittent connectivity, DTNs might be significantly limited in supporting application ...
    • The Energy-Limited Capacity of Wireless Networks 

      Zhao, Wenrui; Ammar, Mostafa H. (Mostafa Hamed); Zegura, Ellen W. (Georgia Institute of Technology, 2004)
      The performance of large-scale wireless ad hoc networks is often limited by the broadcasting nature of the wireless medium and the inherent node energy constraints. While the impact of the former on network capacity has ...
    • Multicasting in Delay Tolerant Networks: Semantic Models and Routing Algorithms 

      Zhao, Wenrui; Ammar, Mostafa H. (Mostafa Hamed); Zegura, Ellen W. (Georgia Institute of Technology, 2006)
      Delay tolerant networks (DTNs) are a class of emerging networks that experience frequent and long-duration partitions. These networks have a variety of applications in situations such as crisis environments and deep-space ...
    • Trading Latency for Energy in Wireless Ad Hoc Networks using Message Ferrying 

      Jun, Hyewon; Zhao, Wenrui; Ammar, Mostafa H. (Mostafa Hamed); Zegura, Ellen W.; Lee, Chungki (Georgia Institute of Technology, 2004)
      Power management is a critical issue in wireless ad hoc networks where the energy supply is limited. In this paper, we investigate a routing paradigm, Message Ferrying (MF), to save energy while trading off data delivery ...