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Traditional medium access control (MAC) protocols resort to collision avoidance to improve the efficiency of channel utilization. According to our investigation, however, collision avoidance causes time delay, which also hurts channel utilization, especially in the dense networks or intensive traffic. Discovering the ability to tolerate collisions with the correlatable preamble at the physical layer implementations of wireless networks, we propose CWM in this paper, a MAC protocol that advocates simultaneous accesses from multiple senders to a shared channel, allowing collisions instead of avoiding them. With the correlatable sequences, CWM addresses the challenges in achieving collision tolerance, such as precise sender alignment and control of the transmission concurrency. We implement the experiments on USRP verifying the feasibility of our protocol and implement CWM in 802.15.4 networks and evaluate its performance with 100 nodes on MATLAB. The results demonstrate that our protocol significantly improves the spatial reuse of the wireless channel by at least 23% compared with the state-of-the-art protocols. <\/jats:p>","DOI":"10.1155\/2015\/678735","type":"journal-article","created":{"date-parts":[[2015,5,13]],"date-time":"2015-05-13T21:05:12Z","timestamp":1431551112000},"page":"678735","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":2,"title":["Collision Tolerance: Improving Channel Utilization with Correlatable Symbol Sequences in Wireless Networks"],"prefix":"10.1177","volume":"11","author":[{"given":"Jumin","family":"Zhao","sequence":"first","affiliation":[{"name":"Taiyuan University of Technology, Shanxi 030024, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shaolei","family":"Fan","sequence":"additional","affiliation":[{"name":"Taiyuan University of Technology, Shanxi 030024, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Deng-ao","family":"Li","sequence":"additional","affiliation":[{"name":"Taiyuan University of Technology, Shanxi 030024, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Baofeng","family":"Zhao","sequence":"additional","affiliation":[{"name":"Taiyuan University of Technology, Shanxi 030024, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2015,5,13]]},"reference":[{"key":"B1-2015-678735","doi-asserted-by":"publisher","DOI":"10.1145\/1859995.1859999"},{"first-page":"392","volume-title":"Proceedings of the 7th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC '96)","author":"Bianchi G.","key":"B2-2015-678735"},{"key":"B3-2015-678735","doi-asserted-by":"publisher","DOI":"10.1145\/2348543.2348555"},{"key":"B4-2015-678735","doi-asserted-by":"publisher","DOI":"10.1109\/ICNP.2013.6733591"},{"key":"B9-2015-678735","doi-asserted-by":"publisher","DOI":"10.1109\/TIT.1972.1054840"},{"first-page":"497","volume-title":"Proceedings of the 8th Annual Joint Conference of the IEEE Computer and Communications Societies. 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