TY - JOUR
T1 - Uplink timing misalignment in open and closed access OFDMA femtocell networks
AU - Tarasak, Poramate
AU - Quek, Tony Q.S.
AU - Chin, Francois
PY - 2011/9
Y1 - 2011/9
N2 - We focus on an uplink network composing of femtocell access points (FAPs), macrocell users (MUs) and a macrocell base station (MBS) employing orthogonal frequency division multiple access (OFDMA) signaling. Synchronization of MUs at the MBS results in asynchronous signal arrivals at the FAPs which may induce intercarrier interference (ICI). Given a fixed distance between an FAP and the MBS, we derive a closed-form expression for the probability of an MU causing ICI to the FAP. Then, we extend this to obtain the probability of an open and closed access FAP experiencing ICI in the presence of a fixed number of MUs, and the average number of open and closed access FAPs experiencing ICI.
AB - We focus on an uplink network composing of femtocell access points (FAPs), macrocell users (MUs) and a macrocell base station (MBS) employing orthogonal frequency division multiple access (OFDMA) signaling. Synchronization of MUs at the MBS results in asynchronous signal arrivals at the FAPs which may induce intercarrier interference (ICI). Given a fixed distance between an FAP and the MBS, we derive a closed-form expression for the probability of an MU causing ICI to the FAP. Then, we extend this to obtain the probability of an open and closed access FAP experiencing ICI in the presence of a fixed number of MUs, and the average number of open and closed access FAPs experiencing ICI.
UR - http://www.scopus.com/inward/record.url?scp=80052850362&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80052850362&partnerID=8YFLogxK
U2 - 10.1109/LCOMM.2011.081211.102563
DO - 10.1109/LCOMM.2011.081211.102563
M3 - Article
AN - SCOPUS:80052850362
SN - 1089-7798
VL - 15
SP - 926
EP - 928
JO - IEEE Communications Letters
JF - IEEE Communications Letters
IS - 9
M1 - 5997339
ER -