TY - GEN
T1 - Coverage performance of UWB in-car wireless communication in the presence of multiple terminals
AU - Arai, Takuto
AU - Shirai, Toru
AU - Watanabe, Yuki
AU - Maehara, Fumiaki
PY - 2012/5/11
Y1 - 2012/5/11
N2 - Recent years, the increase in complicated wire harness increases the weight and consequently harms the environment friendliness especially in a luxury car. Therefore, it is expected that in-car network is effectively built by using wireless connection as well as wired connection. In this paper, we investigate the coverage area performance of MB-OFDM UWB in-car communication in the presence of plural mobile terminals. In our approach, simultaneous multi-user wireless transmission is realized by multi-user MIMO (MU-MIMO) employing linear precoding with restriction of the total transmit power which satisfies the UWB power density limitation. Numerical results show the influence of the number of terminals on the coverage area under in-car propagation and verify the applicability of MU-MIMO to MB-OFDM UWB in-car wireless communication.
AB - Recent years, the increase in complicated wire harness increases the weight and consequently harms the environment friendliness especially in a luxury car. Therefore, it is expected that in-car network is effectively built by using wireless connection as well as wired connection. In this paper, we investigate the coverage area performance of MB-OFDM UWB in-car communication in the presence of plural mobile terminals. In our approach, simultaneous multi-user wireless transmission is realized by multi-user MIMO (MU-MIMO) employing linear precoding with restriction of the total transmit power which satisfies the UWB power density limitation. Numerical results show the influence of the number of terminals on the coverage area under in-car propagation and verify the applicability of MU-MIMO to MB-OFDM UWB in-car wireless communication.
KW - MB-OFDM UWB
KW - coverage area
KW - in-car communication
KW - linear precoding
KW - multi-user MIMO
UR - http://www.scopus.com/inward/record.url?scp=84860661151&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84860661151&partnerID=8YFLogxK
U2 - 10.1109/RWS.2012.6175390
DO - 10.1109/RWS.2012.6175390
M3 - Conference contribution
AN - SCOPUS:84860661151
SN - 9781457711541
T3 - RWW 2012 - Proceedings: IEEE Radio and Wireless Symposium, RWS 2012
SP - 111
EP - 114
BT - RWW 2012 - Proceedings
T2 - 2012 6th IEEE Radio and Wireless Week, RWW 2012 - 2012 IEEE Radio and Wireless Symposium, RWS 2012
Y2 - 15 January 2012 through 18 January 2012
ER -