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As the number of mobile users increases, the amount of traffic passing through base station (BS) significantly increases so that the preplanned capacity of downlink or uplink can be exceeded from time to time resulting in the degradation of users\u2019 QoS satisfaction. A way to utilize the downlink (DL) and the uplink (UL) of an orthogonal frequency division multiple access frame efficiently is therefore needed subject to users\u2019 bandwidth demand which changes continuously over the time. In this paper, we propose a QoS-aware dynamic resource allocation (QDRA) scheme which dynamically adjusts the DL\/UL ratio to allocate bandwidth for QoS support to users based on the usage statistics. The performance of the proposed QDRA scheme was examined by applying to the WiMAX standard specifications, to show its superiority of maintaining a higher QoS support for various classes of services compared to the pre-reported adaptive method.<\/jats:p>","DOI":"10.1186\/1687-1499-2014-104","type":"journal-article","created":{"date-parts":[[2014,6,20]],"date-time":"2014-06-20T03:03:04Z","timestamp":1403233384000},"update-policy":"http:\/\/dx.doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["QoS-aware dynamic resource allocation for wireless broadband access networks"],"prefix":"10.1186","volume":"2014","author":[{"given":"Tri M","family":"Nguyen","sequence":"first","affiliation":[]},{"given":"Taihyung","family":"Yim","sequence":"additional","affiliation":[]},{"given":"Youchan","family":"Jeon","sequence":"additional","affiliation":[]},{"given":"Yeunwoong","family":"Kyung","sequence":"additional","affiliation":[]},{"given":"Jinwoo","family":"Park","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2014,6,20]]},"reference":[{"key":"936_CR1","unstructured":"3GPP: Evolved Universal Terrestrial Radio Access (EUTRA) - Physical Channels and Modulation (Release 10). 3GPP TS 36.211 V10.5.0, Valbonne, France, June 2012"},{"key":"936_CR2","unstructured":"IEEE: IEEE Standard for Local and Metropolitan Area Networks - Part 16: Air Interface for Broadband Wireless Access Systems (IEEE 802.16-2009). 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