TY - GEN
T1 - Capacity analysis of wireless ad hoc networks with improved channel reservation
AU - Zhang, Yongping
AU - Li, Bo
AU - Yang, Mao
AU - Yan, Zhongjiang
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/6/17
Y1 - 2015/6/17
N2 - In ad hoc networks, interference is an important factor limiting the network capacity. Imposing a reservation zone around each receiver has been widely considered to mitigate the interference. A larger reservation zone can decrease the interference, but it also lowers the spatial reuse for reduced simultaneous transmissions. Therefore, there exists an optimal reservation zone to maximize the network capacity. In this paper, rate adaptation is brought to improve the channel reservation scheme, and network capacity achieved by jointly optimizing the data rate and reservation zone is investigated for spread-spectrum (SS) ad hoc networks. Compared to the transmission capacity with fixed data rate assumption, analytical and numerical results show that network capacity can be significantly improved, and the capacity gain remains constant in the order of 300% for direct sequence (DS) SS networks and increases with the growing spreading factors in the range of 300-800% for frequency hopping (FH) SS networks.
AB - In ad hoc networks, interference is an important factor limiting the network capacity. Imposing a reservation zone around each receiver has been widely considered to mitigate the interference. A larger reservation zone can decrease the interference, but it also lowers the spatial reuse for reduced simultaneous transmissions. Therefore, there exists an optimal reservation zone to maximize the network capacity. In this paper, rate adaptation is brought to improve the channel reservation scheme, and network capacity achieved by jointly optimizing the data rate and reservation zone is investigated for spread-spectrum (SS) ad hoc networks. Compared to the transmission capacity with fixed data rate assumption, analytical and numerical results show that network capacity can be significantly improved, and the capacity gain remains constant in the order of 300% for direct sequence (DS) SS networks and increases with the growing spreading factors in the range of 300-800% for frequency hopping (FH) SS networks.
KW - Capacity Analysis
KW - Improved Channel Reservation
KW - Rate Adaptation
UR - http://www.scopus.com/inward/record.url?scp=84938686179&partnerID=8YFLogxK
U2 - 10.1109/WCNC.2015.7127638
DO - 10.1109/WCNC.2015.7127638
M3 - 会议稿件
AN - SCOPUS:84938686179
T3 - 2015 IEEE Wireless Communications and Networking Conference, WCNC 2015
SP - 1189
EP - 1194
BT - 2015 IEEE Wireless Communications and Networking Conference, WCNC 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2015 IEEE Wireless Communications and Networking Conference, WCNC 2015
Y2 - 9 March 2015 through 12 March 2015
ER -