Details

Autor(en) / Beteiligte

• Peel, C.B.
• Lee Swindlehurst, A.
• Dahlhaus, D.

Titel

Distance-Weighted Throughput for Multi-Antenna Wireless Networks with Multi-User Links

Ist Teil von

• 2006 IEEE 63rd Vehicular Technology Conference, 2006, Vol.2, p.901-905

Ort / Verlag

IEEE

Erscheinungsjahr

2006

Quelle

IEEE/IET Electronic Library (IEL)

Beschreibungen/Notizen

• Recent results on the throughput achievable with wireless networks have not fully considered multiple antennas and multi-user links. We introduce these topics by giving the transport capacity of the multiple-antenna multiple-access and broadcast channels. We use these topologies at the physical layer of an ad-hoc network to obtain achievable distance-weighted rates for a multi-antenna wireless network. These values are obtained by maximizing the distance-weighted rate over all combinations of point-to-point, uplink, and downlink topologies, respectively. A distributed algorithm which seeks a Nash equilibrium is used to optimize the transmit covariance matrices for the centralized topology search. Numerical examples with a uniform per-node power constraint show the benefit of uplink topologies over downlink and point-to-point topologies, especially at high transmit power, high numbers of antennas, and a large number of nodes