Transmitter Power Control and Voice Activity Detection Discontinuous Transmission (VAD DTX) are two commonly used power saving techniques in a TDMA wireless network. Power Control schemes can further be divided into two main categories. The first group, with low complexity, aims at reducing power consumption at mobile units while maintaining a usable power reception level at the base stations. The second group, with a much higher complexity, aims at a better Co-channel Interference (CCI) performance....[ Read more ]

Transmitter Power Control and Voice Activity Detection Discontinuous Transmission (VAD DTX) are two commonly used power saving techniques in a TDMA wireless network. Power Control schemes can further be divided into two main categories. The first group, with low complexity, aims at reducing power consumption at mobile units while maintaining a usable power reception level at the base stations. The second group, with a much higher complexity, aims at a better Co-channel Interference (CCI) performance.

Although the performance of power control and VAD have been studied before, the models used often lack many important details, like mobility and power quantization. In this thesis, we intend to develop analytical and simulation techniques to evaluate the performance of power control and VAD in terms of power saving and Co-Channel Interference (CCI) reduction. The results show that power control and VAD can reduce power consumption. But in terms of CCI, VAD has a consistent gain and the first group of power control schemes offers little or no improvements. The performance gain in CC1 of the second group of power control schemes is affected significantly by mobility.