Data networks
Elements of information theory
Elements of information theory
FOCS '02 Proceedings of the 43rd Symposium on Foundations of Computer Science
Multi-Carrier and Spread Spectrum Systems
Multi-Carrier and Spread Spectrum Systems
IEEE/ACM Transactions on Networking (TON) - Special issue on networking and information theory
Downlink joint rate and power allocation in cellular multirate WCDMA systems
IEEE Transactions on Wireless Communications
Dynamic rate adaptation and integrated rate and error control in cellular WCDMA networks
IEEE Transactions on Wireless Communications
Fade-resistant CDMA transmission and reception over time-varying wireless channels
IEEE Transactions on Wireless Communications
Sequential opportunistic decoding for spread spectrum wireless networks
IEEE Transactions on Wireless Communications
Effects of Time-Variations in Wireless Channels on the Two Different Fade-Resistant CDMA Systems
IEEE Transactions on Wireless Communications
Impact of spreading bandwidth on RAKE reception in dense multipath channels
IEEE Journal on Selected Areas in Communications
Pilot-aided chip-interleaved DS-CDMA transmission over time-varying channels
IEEE Journal on Selected Areas in Communications
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Temporal fading is an inherent characteristic of wireless channels. Furthermore, in a multiuser spread spectrum network, the instantaneous value of the multiple access interference varies with time. As a consequence, the instantaneous signal-to-interference-plus-noise ratio varies from one frame to another. This variation can even occur within a given frame. In this work, we present a new set of analytical and numerical results on Incremental Spreading (IS) protocols that adaptively increase the duration of a frame, or the spreading gain, based on the past instantaneous channel and interference conditions. The control operation is carried out mainly at the receiver end, resulting in a distributed system, unlike other spreading gain control algorithms which are centralized. These protocols are ready to be implemented in single- and multi-carrier code division multiple access (CDMA) type technologies and can enhance the throughput and capacity of wireless networks.