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In the IEEE 802.11 DCF scheme, the smaller contention window (CW) will increase the collision probability, but the larger CW will delay the transmission. Hence, in the proposed SETL scheme, a threshold is set to determine the behavior of CW after each transmission. When the CW is smaller than the threshold, the CW of a competing station is exponentially adjusted to lower collision probability. Conversely, if the CW is larger than the threshold, the CW size is tuned linearly to prevent large transmission delay. Through extensive simulations, the results show that the proposed SETL scheme provides a better system throughput and lower collision rate in both light and heavy network loads than the related backoff algorithm schemes, including Binary Exponential Backoff (BEB), Exponential Increase Exponential Decrease (EIED) and Linear Increase Linear Decrease (LILD). Copyright \u00a9 2011 John Wiley &amp; Sons, Ltd.<\/jats:p>","DOI":"10.1002\/dac.1210","type":"journal-article","created":{"date-parts":[[2011,1,13]],"date-time":"2011-01-13T07:14:33Z","timestamp":1294902873000},"page":"1033-1048","source":"Crossref","is-referenced-by-count":40,"title":["A smart exponential\u2010threshold\u2010linear backoff mechanism for IEEE 802.11 WLANs"],"prefix":"10.1002","volume":"24","author":[{"given":"Chih\u2010Heng","family":"Ke","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chih\u2010Cheng","family":"Wei","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kawuu W.","family":"Lin","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jen\u2010Wen","family":"Ding","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2011,1,13]]},"reference":[{"key":"e_1_2_7_2_2","unstructured":"IEEE standard for Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications.ISO\/IEC 802\u201011:1999 (E) August1999."},{"key":"e_1_2_7_3_2","doi-asserted-by":"crossref","unstructured":"KuoWK ChanCY ChenKC.Time bounded services and mobility management in IEEE 802.11 wireless LANs. 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