Power Allocation for Multi-Point Joint Transmission with Different Node Activeness
Paper i proceeding, 2013

We study the power allocation problem for the downlink of a cooperative system with different node activeness, i.e., each receiving node requests for data transmission according to a certain probability. Data symbols of the active nodes are jointly transmitted from cooperative transmission points using zero-forcing precoding. The problem is cast in form of maximizing the ergodic achievable rate subject to per-transmit-point average total power constraints. The derived power allocation indicates that depending on the channel conditions and receiving nodes' activation probability, the optimal solution takes the form of either greedy power allocation or power sharing allocation.

joint transmission

Power allocation

random node activity

coordinated multi-point (CoMP)

Författare

Jingya Li

Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

Behrooz Makki

Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

Tommy Svensson

Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

Thomas Eriksson

Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

IEEE Wireless Communications and Networking Conference, WCNC 2013, Shanghai, China.

1525-3511 (ISSN)

4220-4225

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Kommunikationssystem

Signalbehandling

DOI

10.1109/WCNC.2013.6555255

ISBN

978-146735939-9