The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 29, 2014
Filed:
Jan. 21, 2011
Chun Nie, Nutley, NJ (US);
Pei Liu, Forest Hills, NY (US);
Thanasis Korakis, Brooklyn, NY (US);
Elza Erkip, New York, NY (US);
Shivendra S. Panwar, Freehold, NJ (US);
Chun Nie, Nutley, NJ (US);
Pei Liu, Forest Hills, NY (US);
Thanasis Korakis, Brooklyn, NY (US);
Elza Erkip, New York, NY (US);
Shivendra S. Panwar, Freehold, NJ (US);
Polytechnic Institute of New York University, Brooklyn, NY (US);
Abstract
Cooperative communication is a technique that can be employed to meet the increased throughput needs of next generation WiMAX systems. In a cooperative scenario, multiple stations can jointly emulate the antenna elements of a multi-input multi-output system in a distributed fashion. A framework for a randomized distributed space-time coding ('R-DSTC') technique in the emerging relay-assisted WiMAX network, and the development of a cooperative medium access control ('MAC') layer protocol, called CoopMAX, for R-DSTC deployment in an IEEE 802.16 system, is described. The technique described couples the MAC layer with the physical (PHY) layer for performance optimization. The PHY layer yields significant diversity gain, while the MAC layer achieves a substantial end-to-end throughput gain.