Sökning: "direct sequence CDMA"
Visar resultat 1 - 5 av 17 avhandlingar innehållade orden direct sequence CDMA.
1. On synchronization of CDMA systems
Sammanfattning : .... LÄS MER
2. Coding and Modulation for Wideband CDMA
Sammanfattning : Wideband CDMA (Code Division Multiple Access) is one of the key technologies for future mobile communication systems. This thesis studies various coding and transmission methods for wideband CDMA communications. In a cellular environment, the system performance depends on the interference from other cells. LÄS MER
3. Successive Interference Cancellation in DS-CDMA Systems
Sammanfattning : There is every indication that direct-sequence code division multiple access (DS-CDMA) will be one of the multiple access schemes for the third generation wireless mobile systems. CDMA is a flexible multiple access method suitable for supporting many new services (speech, data, video, etc), which are becoming increasingly important for mobile communications. LÄS MER
4. Subspace-Based Parameter Estimation Problems in Signal Processing
Sammanfattning : The effects of multipath-induced angular spread and non-zero band-width on narrow-band direction-of-arrival (DOA) estimation are investigated. In both cases expressions for the resulting estimation error are developed for the MUSIC, ESPRIT and WSF DOA estimators. LÄS MER
5. Multirate Schemes and Multiuser Decoding in DS/CDMA Systems
Sammanfattning : Direct-Sequence Code Division Multiple-Access (DS/CDMA) has for some yearsbeen considered as a candidate for future personal and mobile communications.The reasons are mainly the properties of universal frequency reuse andthe multi-path mitigation. LÄS MER