Download now Free registration required
In this paper, the authors analyze optimal (in space and time) adaptive power transmission policies for fading channels when the Channel-State Information (CSI) at the Transmitter (CSIT) and the Receiver (CSIR) is available. The transmitter has a long-term (time) average power constraint. There can be multiple antennas at the transmitter and at the receiver. The channel experiences Rayleigh fading. They consider beamforming and space-time coded systems with perfect/imperfect CSIT and CSIR. The performance measure is the Bit Error Rate (BER). They show that in both coded and uncoded systems, the power allocation policy provides exponential diversity order if perfect CSIT is available.
- Format: PDF
- Size: 960.35 KB