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In this way the transmission parameters like power, code rate and modulation symbol are adapted according to the varying link conditions. In this paper we propose a Fuzzy Rule Based System (FRBS) for an efficient ACM in DVB-S2 standard. We have taken it as a constrained optimization problem in which the link reliability and throughput is maximized, while power constraint is satisfied. To do so we have selected the standard transmission Modulations and Codes (MODCODs) optimally using FRBS, according to the DVB-S2 downlink channel state information (CSI) at different sites. The FRBS module can easily be embedded in the ACM management module (AMM) which is a software module. Significance of the proposed scheme over other schemes is shown through simulations.<\/jats:p>","DOI":"10.3233\/ifs-151802","type":"journal-article","created":{"date-parts":[[2016,2,9]],"date-time":"2016-02-09T10:56:15Z","timestamp":1455015375000},"page":"801-810","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":14,"title":["QoS and rate enhancement in DVB-S2 using fuzzy rule based system"],"prefix":"10.1177","volume":"30","author":[{"family":"Atta-ur-Rahman","sequence":"first","affiliation":[{"name":"Barani Institute of Information Technology (BIIT), PMAS-AA University, Rawalpindi, Pakistan"}]},{"given":"Ijaz Mansoor","family":"Qureshi","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, Air University, E-9, PAF Complex, Islamabad, Pakistan"}]},{"given":"Aqdas Naveed","family":"Malik","sequence":"additional","affiliation":[{"name":"Department of Electronic Engineering, International Islamic University, Islamabad, Pakistan"}]},{"given":"Muhammad Tahir","family":"Naseem","sequence":"additional","affiliation":[{"name":"Barani Institute of Information Technology (BIIT), PMAS-AA University, Rawalpindi, Pakistan"},{"name":"School of Engineering &amp; Applied Sciences (SEAS), ISRA University, Islamabad Campus, Islamabad, Pakistan"}]}],"member":"179","published-online":{"date-parts":[[2015,10,9]]},"reference":[{"key":"e_1_3_2_2_2","unstructured":"ETSI EN 302 307 Digital Video Broadcasting (DVB); Second generation framing structure channel coding and modulation systems for Broadcasting Interactive Services News Gathering and other broadband satellite applications. 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