Sökning: "Rayleigh-fading channels"
Visar resultat 6 - 10 av 40 avhandlingar innehållade orden Rayleigh-fading channels.
6. Convolutional Codes for Wireless Packet Data Systems
Sammanfattning : Automatic Repeat reQuest (ARQ) schemes can guarantee an almost error freereception strongly required in data communications. Hybrid type-II ARQschemes are supplied with channel coding to further improve the performance.In these schemes, error correction is performed adaptively which makesthem favorable for applications in time varying channels. LÄS MER
7. Diversity and Interference Aspects in the Downlink of Code Division Multiple Access Systems
Sammanfattning : This thesis consists of six included papers and technical reports, plus an introduction. The topic studied is interference and diversity aspects in code division multiple access (CDMA) systems for mobile cellular communications. The focus in the papers is on the downlink - the communication link from the base station to the mobile terminal. LÄS MER
8. On convolutional codes and multi-carrier techniques for CDMA systems
Sammanfattning : .... LÄS MER
9. Synchronization and data detection in long-code CDMA systems / Pei Xiao %C Göteborg
Sammanfattning : .... LÄS MER
10. Coding and Iterative Decoding of Concentrated Multi-level Codes for the Rayleigh Fading Channel
Sammanfattning : In this thesis we present the concept of concatenated multilevel codes. These codes are a combination of generalized concatenated codes with multilevel coding. The structure of these codes is simple and relies on the concatenation of two or more codes of shorter length. LÄS MER