Title :
Group based preamble detection for contention bandwidth request under EVA channel
Author :
Rajesh, A. ; Nakkeeran, R.
Author_Institution :
Dept. of Electron. Eng., Pondicherry Univ., Pondicherry, India
Abstract :
In this paper, a group based preamble selection is proposed for dynamic assignment of bandwidth to User Equipments (UEs). Conventional non-group based preamble selection suffers from low detection probability under multipath fading channel namely extended vehicular A (EVA). The contention BR in Long Term Evolution (LTE) networks shows improved performance when group based preamble selection is combined with uniform backoff mechanism. Simulation results conclude that uniform backoff with grouping shows an improvement of 14.35% and 32.92% than conventional uniform backoff and binary exponential backoff without grouping, respectively.
Keywords :
Long Term Evolution; bandwidth allocation; fading channels; probability; radio access networks; EVA channel; LTE; Long Term Evolution networks; broadband wireless access network; contention bandwidth request; dynamic bandwidth assignment; extended vehicular A; group based preamble detection; low detection probability; multipath fading channel; nongroup based preamble selection; uniform backoff mechanism; user equipments; Bandwidth; Delays; Doppler effect; Downlink; Fading; Long Term Evolution; Signal to noise ratio; Contention mechanism; LTE; bandwidth request; medium access control;
Conference_Titel :
Green Computing, Communication and Conservation of Energy (ICGCE), 2013 International Conference on
Conference_Location :
Chennai
DOI :
10.1109/ICGCE.2013.6823422
