ITTC Project

BRIGE: Heterogeneous Traffic over Heterogeneous Relay Networks

Project Award Date: 09-01-2012


Previous design of wireless communication systems usually neglects the statistical queueing delay in the performance analysis. By focusing on asymptotic throughput limits, information theory often overlooks the role of delay in service quality. However, as predicted by Cisco, future mobile data networks
will face the dual challenge of supporting large traffic volumes while providing reliable service for various delay-sensitive applications such as real-time video. Most delay-sensitive applications have stringent requirements on statistical delay-violation probabilities. For example, in the 4th generation cellular standard,
the requirement on delay-violation probability for real-time video traffic is 2% with the delay bound being 50ms for radio access networks. On the other hand, heterogeneous relay networks are believed to be the enabling technology for improving the overall network capacity and spectrum utilization. The change
of the network architecture from homogeneous to heterogeneous brings many challenges in radio resource management such as mobile association and load balancing of the network. Accordingly, understanding the interplay among delay-violation probability, resource allocation, coderate design, mobile association, and load balancing requires a new way of thinking and a new system design perspective.


Faculty Investigator(s): Lingjia Liu (PI)

Student Investigator(s): Md Amimul Ehsan, Hao Chen, Rubayet Shafin, Wafi Danesh, Meenakshi Mishra, Xiaoli Li, Somayeh "Susanna" Mosleh Ghahfarokhi, Zachary Rohde, Rachad Atat

Project Sponsors

Primary Sponsor(s): NSF

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