April 29, 2014

Dynamic Bandwidth Allocation Algorithms for High-Speed Data Wireless Networks

  • Andrews M.
  • Borst S.
  • Dominique F.
  • Jelenkovic P.
  • Kumaran K.
  • Ramaknshnan K.
  • Whiting P.

Next generation wireless networks are expected to support a wide range of high-speed data services, Web browsing being one of the major applications. Although high data rates have been shown feasible in a single-user setting, the resource allocation issues that arise in a multiple-user context remain extremely challenging. As compared with voice, data traffic is typically more bursty, while the users are less sensitive to delay. These characteristics require resource allocation strategies to operate in a fundamentally different manner in order to achieve efficient spectrum utilization. The paper proposes several algorithms for scheduling the transmission of data to multiple users in an efficient manner. As a novel feature, the various schemes exploit knowledge of the buffer contents in order to achieve high throughput, while maintaining fairness by providing quality-of- service to individual users. The proposed algorithms are backward compatible with existing cellular and PCS standards such as IS-136, and provide a powerful approach to improve spectrum efficiency in forthcoming high-speed data complement services to existing cellular systems. Extensive simulation experiments demonstrate that the algorithms significantly outperform conventional schemes.

View Original Article

Recent Publications

May 01, 2020

A Packaged 0.01-26-GHz Single-Chip SiGe Reflectometer for Two-Port Vector Network Analyzers

  • Chung H.
  • Ma Q.
  • Rebeiz G.
  • Sayginer M.

© 1963-2012 IEEE. This article presents a packaged SiGe BiCMOS reflectometer for 0.01-26-GHz two-port vector network analyzers (VNAs). The reflectometer chip is composed of a resistive bridge coupler and two wideband heterodyne receivers for coherent magnitude and phase detection. In addition, a high-linearity receiver channel is designed to accommodate 20 ...

August 01, 2019

Protecting photonic quantum states using topology

  • Blanco-Redondo A.

The use of topology to protect quantum information is well-known to the condensed-matter community and, indeed, topological quantum computing is a bursting field of research and one of the competing avenues to demonstrate that quantum computers can complete certain problems that classical computers cannot. In photonics, however, we are only ...

May 01, 2019

Digital networks at the nexus of productivity growth

  • Kamat S.
  • Prakash S.
  • Saniee I.
  • Weldon M.

This paper takes a fresh look at the debate over the relationship between digital technology and productivity. The argument of economic historian Robert J. Gordon is that digital technology will not lead to increases in productivity such as we saw in the last century, based on his analysis of the ...