An Adaptive Protocol Suite for the Next Generation Wireless Internet
Supported by: National Science Foundation (NSF)  




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since 04/23/2004


Currently proposed 3G systems offer roaming, higher capacity and increased flexibility for low bandwidth services, such as voice calls and messaging. While future wireless systems (4G and higher) are envisioned to provide higher capacity, they are also expected to support heterogeneity in the following aspects:

  • Physical environments (ranging from high-bandwidth low error-rate pico-cells to low-bandwidth high error-rate macro-cells)
  • Network architectures (cellular, peer-to-peer, or other hybrid network models)
  • Applications (ranging from low data-rate non-real-time applications to high data-rate real-time applications)
In this project, we will investigate several key elements that are necessary to realize a protocol stack for a mobile station in 4G wireless systems. The ultimate objective is to develop an adaptive protocol suite that would adapt itself to different aspects of heterogeneity exhibited by the next generation wireless systems. In particular, we will investigate the following problems:
  1. Application Layer
    1. Data-rate scalability
    2. Joint optimal real-time video streaming system
  2. Transport Layer
    1. Heterogeneous network characteristics
    2. Heterogeneous network architectures
  3. Network Layer
    1. Application requirements
    2. Heterogeneous network architectures
  4. Data Link Layer
    1. Rate-compatible error control coding