3rd International ICST Conference on COMmunication System SoftWAre and MiddlewaRE

Research Article

MIMO in Wireless WAN – the UMB System

  • @INPROCEEDINGS{10.1109/COMSWA.2008.4554379,
        author={Sandip Sarkar and Tamer Kadous and Tingfang Ji and Naga Bhushan and Alex Gorokhov and Aamod Khandekar and Rajiv Vijayan and Avneesh Agrawal},
        title={MIMO in Wireless WAN -- the UMB System},
        proceedings={3rd International ICST Conference on COMmunication System SoftWAre and MiddlewaRE},
  • Sandip Sarkar
    Tamer Kadous
    Tingfang Ji
    Naga Bhushan
    Alex Gorokhov
    Aamod Khandekar
    Rajiv Vijayan
    Avneesh Agrawal
    Year: 2008
    MIMO in Wireless WAN – the UMB System
    DOI: 10.1109/COMSWA.2008.4554379
Sandip Sarkar1,*, Tamer Kadous1,*, Tingfang Ji1,*, Naga Bhushan1,*, Alex Gorokhov1,*, Aamod Khandekar1,*, Rajiv Vijayan1,*, Avneesh Agrawal1,*
  • 1: Qualcomm Incorporated 5775 Morehouse Drive, San Diego, CA 92121
*Contact email: ssarkar@qualcomm.com, tkadous@qualcomm.com, tji@qualcomm.com, nbhush@qualcomm.com, gorokhov@qualcomm.com, aamodk@qualcomm.com, rvijayan@qualcomm.com, aagrawal@qualcomm.com


Theoretically, MIMO offers significant capacity benefits, but realizing these gains in deployed wireless systems remains a very challenging problem. MIMO has been used in wireless LAN systems with great success. However, due to the hugely varying spatial profiles and velocity patterns of the Access Terminals, integrating MIMO techniques in a wireless WAN system has been a difficult design problem. This paper introduces the design paradigms of Ultra-Mobile Broadband, which is poised to become the successor of EVDO as the next generation of high speed wireless system. UMB allows the use of MIMO in various forms to suit the deployment scenario, and elicit as much gain as possible.