652 citations · 933 across the 7 of their papers we have counts for
7 papers
SCMA Codebook Design
Mahmoud Taherzadeh, Hosein Nikopour, Alireza Bayesteh +1
Multicarrier CDMA is a multiple access scheme in which modulated QAM symbols are spread over OFDMA tones by using a generally complex spreading sequence. Effectively, a QAM symbol…
Limits on the Robustness of MIMO Joint Source-Channel Codes
Mahmoud Taherzadeh, H. Vincent Poor
In this paper, the theoretical limits on the robustness of MIMO joint source channel codes is investigated. The case in which a single joint source channel code is used for the ent…
Robust Joint Source-Channel Coding for Delay-Limited Applications
Mahmoud Taherzadeh, Amir K. Khandani
In this paper, we consider the problem of robust joint source-channel coding over an additive white Gaussian noise channel. We propose a new scheme which achieves the optimal slope…
On The Limitations of The Naive Lattice Decoding
Mahmoud Taherzadeh, Amir K. Khandani
In this paper, the inherent drawbacks of the naive lattice decoding for MIMO fading systems is investigated. We show that using the naive lattice decoding for MIMO systems has cons…
LLL Reduction Achieves the Receive Diversity in MIMO Decoding
Mahmoud Taherzadeh, Amin Mobasher, Amir K. Khandani
Diversity order is an important measure for the performance of communication systems over MIMO fading channels. In this paper, we prove that in MIMO multiple access systems (or MIM…
Communication Over MIMO Broadcast Channels Using Lattice-Basis Reduction
Mahmoud Taherzadeh, Amin Mobasher, Amir K. Khandani
A simple scheme for communication over MIMO broadcast channels is introduced which adopts the lattice reduction technique to improve the naive channel inversion method. Lattice bas…