Sökning: "band-limited channel"

Hittade 2 uppsatser innehållade orden band-limited channel.

1. 1. Channel estimation in mobile wireless systems

   Uppsats för yrkesexamina på avancerad nivå, KTH/Signalbehandling

   Författare :Pazi Alli Idd; [2012]
   Nyckelord :Time-variant channel; Discrete Prolate Spheroidal Sequences DPSS ;

   Sammanfattning : The demands of multimedia services from mobile user equipment (UE) for achieving high data rate, high capacity and reliable communication in modern mobile wireless systems are continually ever-growing. As a consequence, several technologies, such as the Universal Mobile Telecommunications System (UMTS) and the 3rd Generation Partnership Project (3GPP), have been used to meet these challenges. LÄS MER

3. 2. Improving Error Performance in Bandwidth-Limited Baseband Channels

   Master-uppsats, Avdelningen för elektronik, matematik och naturvetenskap

   Författare :Juan Wilfredo Alfaro Zavala; [2012]
   Nyckelord :channel coding; bandwidth-limited channel; band-limited channel; error performance; BER; lattice codes; trellis-coded modulation; TCM; convolutional coding; multilevel transmission; soft decisions; hard decisions; MPAM;

   Sammanfattning : Channel coding has been largely used for the purpose of improving error performance on a communications system. Typical methods based on added redundancy allow for error detection and correction, this improvement however comes at a cost of bandwidth. LÄS MER