9 citations · 27 across the 12 of their papers we have counts for
13 papers
Block Error Rate and UE Throughput Performance Evaluation using LLS and SLS in 3GPP LTE Downlink
Ishtiaq Ahmad, Zeeshan Kaleem, KyungHi Chang
This paper provides a link and system level study of the downlink using OFDMA techniques based on LTE systems. At the link level, the Block Error Rate (BLER) performance curves are…
Fixed-complexity Sphere Encoder for Multi-user MIMO Systems
Manar Mohaisen, KyungHi Chang
In this paper, we propose a fixed-complexity sphere encoder (FSE) for multi-user MIMO (MU-MIMO) systems. The proposed FSE accomplishes a scalable tradeoff between performance and c…
Lattice Reduction Aided Precoding for Multiuser MIMO using Seysen's Algorithm
HongSun An, Manar Mohaisen, KyungHi Chang
Lenstra-Lenstra-Lovasz (LLL) algorithm, which is one of the lattice reduction (LR) techniques, has been extensively used to obtain better basis of the channel matrix. In this paper…
Improved Achievable Rates for Regularized Tomlinson-Harashima Precoding in Multiuser MIMO Downlink
Bing Hui, Manar Mohaisen, KyungHi Chang
Tomlinson-Harashima precoding (THP) is considered as a prominent precoding scheme due to its capability to efficiently cancel out the known interference at the transmitter side. Th…
On Transmit Antenna Selection for Multiuser MIMO Systems with Dirty Paper Coding
Manar Mohaisen, KyungHi Chang
In this paper, we address the transmit antenna selection in multi-user MIMO systems with precoding. The optimum and reduced complexity sub-optimum antenna selection algorithms are…
Upper-lower bounded-complexity QRD-M for spatial multiplexing MIMO-OFDM systems
Manar Mohaisen, KyungHi Chang
Multiple-input multiple-output (MIMO) technology applied with orthogonal frequency division multiplexing (OFDM) is considered as the ultimate solution to increase channel capacity…