Joint Power Allocation for OFDM System With Cooperation at the Transmitters

It is known that traditional Water-Filling (WF) provides a closed form solution for capacity maximization in Orthogonal Frequency Division Multiplex (OFDM) system. The solution is derived from a maximum mutual information argument with a single transmitter. Motivated by the novel technology of cooperative communication, the authors consider a new power allocation problem for OFDM systems with two cooperative transmitters, where each transmitter has an individual power constraint and can obtain their own perfect Channel State Information (CSI).

Provided by: Springer Science+Business Media Topic: Mobility Date Added: Apr 2012 Format: PDF

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