Sökning: "linear precoding"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden linear precoding.

  1. 1. Scheduler Algorithms for MU-MIMO

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Wissam Moustafa; Richard Mugisha; [2017]
    Nyckelord :Scheduling; Beamforming; TDD; TM-8; SRS; Downlink; Round Robin; SU-MIMO; MU-MIMO.; Technology and Engineering;

    Sammanfattning : In multi-user multiple input multiple output (MU-MIMO), the complexity of the base-station scheduler has increased further compared to single-user multiple input multiple output (SU-MIMO). The scheduler must understand if several users can be spatially multiplexed in the same time-frequency resource. LÄS MER

  3. 2. Block Diagonalization Based Beamforming

    Master-uppsats, KTH/Teknisk informationsvetenskap

    Författare :Darshan Patil; [2017]
    Nyckelord :;

    Sammanfattning : With increasing mobile penetration multi-user multi-antenna wireless communication systems are needed. This is to ensure higher per-user data rates along with higher system capacities by exploiting the excess degree of freedom due to additional antennas at the receiver with spatial multiplexing. LÄS MER

  4. 3. Low-PAR Precoding for Very-Large Multi-User MIMO Systems

    Master-uppsats, Linköpings universitet/Kommunikationssystem; Linköpings universitet/Tekniska högskolan

    Författare :Christopher Mollén; [2013]
    Nyckelord :MIMO; PAR Reduction; Precoding; Multi-User; MIMO; toppvärdesreducering; förkodning; fleranvändarförkodning;

    Sammanfattning : Storskaliga fleranvändar-MIMO-system, med hundratals basstationsantenner, studeras med allt större intresse både inom akademin och industrin. En anledning är att sådana system kan betjäna flera enantennsanvändare samtidigt över samma tids-frekvens-resurs med fleranvändarförkodning. LÄS MER

  5. 4. Linear Precoding Performance of Massive MU-MIMO downlink System

    Master-uppsats, Kommunikationssystem; Tekniska högskolan

    Författare :Eakkamol Pakdeejit; [2013]
    Nyckelord :Massive MU-MIMO; Multiuser-MIMO; Linear precoding; Spectral efficiency; Energy efficiency;

    Sammanfattning : Nowadays, multiuser Multiple-In Multiple-Out systems (MU-MIMO) are used in a new generation wireless technologies. Due to that wireless technology improvement is ongoing, the numbers of users and applications increase rapidly. Then, wireless communications need the high data rate and link reliability at the same time. LÄS MER

  7. 5. Evaluation of Particle Swarm Optimization Algorithm for Precoding in Coordinated Multi-Point System

    Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Författare :Amir Shehni; [2013]
    Nyckelord :Index Terms--- Coordinated Multi-Point; Precoding; Particle Swarm Optimization; Stochastic Optimization;

    Sammanfattning : In future communication system, the constraint of recourse allocation are a challenging topic. One way for observing such constraint is to apply frequency reuse factor of one in commu- nication system. Taking this factor to one causes the system to have serious problems such as small sum rate and interference speci cally at cell-edge. LÄS MER