TY - GEN
T1 - Spectral efficiency of wireless networks with multi-antenna base stations and spatially distributed nodes
AU - Govindasamy, Siddhartan
AU - Bliss, Daniel W.
AU - Staelin, David H.
PY - 2008/12/1
Y1 - 2008/12/1
N2 - We analyze networks with wireless nodes distributed randomly in space, transmitting simultaneously in the same channel to their nearest base-stations using a simple power control algorithm. Base-stations are on a hexagonal grid and have N optimally-phased antennas. We derive the asymptotic mean upstream spectral efficiency (validated by simulation) as a function of N, wireless-node density, base-station separation, and path-loss-exponent which controls signal attenuation with distance. These results indicate that mean per-link spectral efficiency is constant if the number of receive antennas or density of base-stations is increased linearly with wireless node density. They also improve our understanding of systems like city-wide wireless internet deployments and mobile telephony with small cells for which the spatial distribution of nodes causing outof- cell interference is important. The results are also readily extendable to Random Code-Division-Multiple-Access systems with spreading factor N.
AB - We analyze networks with wireless nodes distributed randomly in space, transmitting simultaneously in the same channel to their nearest base-stations using a simple power control algorithm. Base-stations are on a hexagonal grid and have N optimally-phased antennas. We derive the asymptotic mean upstream spectral efficiency (validated by simulation) as a function of N, wireless-node density, base-station separation, and path-loss-exponent which controls signal attenuation with distance. These results indicate that mean per-link spectral efficiency is constant if the number of receive antennas or density of base-stations is increased linearly with wireless node density. They also improve our understanding of systems like city-wide wireless internet deployments and mobile telephony with small cells for which the spatial distribution of nodes causing outof- cell interference is important. The results are also readily extendable to Random Code-Division-Multiple-Access systems with spreading factor N.
UR - http://www.scopus.com/inward/record.url?scp=70349687129&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70349687129&partnerID=8YFLogxK
U2 - 10.1109/ACSSC.2008.5074590
DO - 10.1109/ACSSC.2008.5074590
M3 - Conference contribution
AN - SCOPUS:70349687129
SN - 9781424429417
T3 - Conference Record - Asilomar Conference on Signals, Systems and Computers
SP - 1130
EP - 1134
BT - 2008 42nd Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2008
T2 - 2008 42nd Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2008
Y2 - 26 October 2008 through 29 October 2008
ER -