TY - JOUR
T1 - Capacity regions for wireless ad hoc networks
AU - Toumpis, Stavros
AU - Goldsmith, Andrea J.
N1 - Funding Information:
Manuscript received September 26, 2001; revised April 24, 2002 and May 10, 2002; accepted June 3, 2002. The editor coordinating the review of this paper and approving it for publication is W. W. Lu. This work was supported by the Office of Naval Research (ONR) under Grant N00014-99-1-0698. The authors are with the Department of Electrical Engineering, Stanford University, Stanford, CA 94305-9515 USA (e-mail: [email protected]). Digital Object Identifier 10.1109/TWC.2003.814342
PY - 2003/7
Y1 - 2003/7
N2 - We define and study capacity regions for wireless ad hoc networks with an arbitrary number of nodes and topology. These regions describe the set of achievable rate combinations between all source-destination pairs in the network under various transmission strategies, such as variable-rate transmission, single-hop or multihop routing, power control, and successive interference cancellation (SIC). Multihop cellular networks and networks with energy constraints are studied as special cases. With slight modifications, the developed formulation can handle node mobility and time-varying flat-fading channels. Numerical results indicate that multihop routing, the ability for concurrent transmissions, and SIC significantly increase the capacity of ad hoc and multihop cellular networks. On the other hand, gains from power control are significant only when variable-rate transmission is not used. Also, time-varying flat-fading and node mobility actually improve the capacity. Finally, multihop routing greatly improves the performance of energy-constraint networks.
AB - We define and study capacity regions for wireless ad hoc networks with an arbitrary number of nodes and topology. These regions describe the set of achievable rate combinations between all source-destination pairs in the network under various transmission strategies, such as variable-rate transmission, single-hop or multihop routing, power control, and successive interference cancellation (SIC). Multihop cellular networks and networks with energy constraints are studied as special cases. With slight modifications, the developed formulation can handle node mobility and time-varying flat-fading channels. Numerical results indicate that multihop routing, the ability for concurrent transmissions, and SIC significantly increase the capacity of ad hoc and multihop cellular networks. On the other hand, gains from power control are significant only when variable-rate transmission is not used. Also, time-varying flat-fading and node mobility actually improve the capacity. Finally, multihop routing greatly improves the performance of energy-constraint networks.
KW - Ad hoc
KW - Capacity region
KW - Energy constraints
KW - Flat fading
KW - Mobility
KW - Multihop cellular
KW - Multihop routing
KW - Wireless
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U2 - 10.1109/TWC.2003.814342
DO - 10.1109/TWC.2003.814342
M3 - Article
AN - SCOPUS:3042796475
SN - 1536-1276
VL - 2
SP - 736
EP - 748
JO - IEEE Transactions on Wireless Communications
JF - IEEE Transactions on Wireless Communications
IS - 4
ER -