Open AccessEnhancement of LTE RACH through extended random access process
Author(s) -
Kim J.S.,
Munir D.,
Hasan S.F.,
Chung M.Y.
Publication year - 2014
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2014.1159
Subject(s) - random access , computer science , lte advanced , computer network , process (computing) , cellular network , term (time) , radio access network , access network , scheme (mathematics) , telecommunications link , distributed computing , mathematics , base station , physics , operating system , mobile station , mathematical analysis , quantum mechanics
Accommodating an increasing number of machine‐to‐machine (M2M) devices is one of the main issues faced by the cellular networks. In a typical M2M setup, several devices may try to connect to the network simultaneously. Long‐term evolution advanced (LTE‐A) networks use a random access procedure for this purpose, which is not sufficient to cater for a large number of devices. The conventional procedure is extended by allowing several devices to access the network with reduced collisions. Mathematical analysis and simulation results show that the proposed scheme increases the access probability as well as the number of successful transmissions.