Elements of information theory
Elements of information theory
CDMA: principles of spread spectrum communication
CDMA: principles of spread spectrum communication
On Limits of Wireless Communications in a Fading Environment when UsingMultiple Antennas
Wireless Personal Communications: An International Journal
IEEE Concurrency
Energy Is Just Another Resource: Energy Accounting and Energy Pricing in the Nemesis OS
HOTOS '01 Proceedings of the Eighth Workshop on Hot Topics in Operating Systems
IEEE Transactions on Information Theory
Capacity of a mobile multiple-antenna communication link in Rayleigh flat fading
IEEE Transactions on Information Theory
Unitary space-time modulation for multiple-antenna communications in Rayleigh flat fading
IEEE Transactions on Information Theory
Differential space-time modulation
IEEE Transactions on Information Theory
CDMA/HDR: a bandwidth efficient high speed wireless data service for nomadic users
IEEE Communications Magazine
Wireless mobile communications at the start of the 21st century
IEEE Communications Magazine
Transmit beamforming and power control for cellular wireless systems
IEEE Journal on Selected Areas in Communications
A simple transmit diversity technique for wireless communications
IEEE Journal on Selected Areas in Communications
A differential detection scheme for transmit diversity
IEEE Journal on Selected Areas in Communications
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Within the last five years, there has been a cultural shift from wired landlocked connectivity to pervasive wireless information access. Most emerging mobile devices are now equipped with some form of embedded wireless radio. The expectations of high data rates and increased battery longevity have put tremendous pressure on all aspects of wireless system design.The goal of our projects at the Center for Multimedia Communication at Rice is to develop powerefficient wireless enabled mobile devices. In this paper, we will consider the control and coding issues to increase active access time of mobile communication devices. In particular, we develop scheduling algorithms which adaptively change the transmission power and rate, based on both the transmission queue backlog and the channel conditions. Thepacket level control algorithms exploit burstiness of data streams and channel variations to trade packet queuing delay with the average transmit power. The wide range of data rates dictated by the scheduler and our power efficiency objective is effectively met by a multi-antenna transceiver. We design non-coherent space-time codes for high mobile speeds, and space-time feedback strategies for low mobility applications. This paper highlights some of the proposed methods and presents some preliminary results.