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:
Mar. 23, 2010
Filed:
Mar. 03, 2008
Jeong-kyun Yun, Anyang-si, KR;
Sae-woong Bahk, Seoul, KR;
Jae-hyun Ahn, Seoul, KR;
Dai-kwan Kim, Seoul, KR;
Jong-hyung Kwun, Seongnam-si, KR;
Jeong-Kyun Yun, Anyang-si, KR;
Sae-Woong Bahk, Seoul, KR;
Jae-Hyun Ahn, Seoul, KR;
Dai-Kwan Kim, Seoul, KR;
Jong-Hyung Kwun, Seongnam-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Seoul National University Industry Foundation, Seoul, KR;
Abstract
An apparatus and method for transmitting data by using Multi-round Contention Avoidance (MrCA) are provided. The method includes initializing a contention window for each of a plurality of contention rounds and setting a backoff counter corresponding to a size of the contention window for each contention round, starting from a first contention round to a last contention round, decrementing a backoff counter of a corresponding contention round in a time slot unit and transmitting data when the decremented backoff counter is zero and when the corresponding contention round is a last contention round. Accordingly, the number of contending nodes is exponentially decreased for each contention round, resulting in significant decrease in a collision probability in addition to improving fairness on channel use among users.