User Capacity Scaling Laws of Multi-user Fading Channels in the Presence of MMSE Channel Estimators

Eslami, Ali; Keshavarz, Hengameh

doi:10.1007/s11277-014-1647-9

Cited by 1 publication

(2 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Multiuser techniques [3,4,7,22] have been introduced in order to increase the performances of the receiver, especially at the base station end, by combining the received data from all users in such a way to increase the BER performances of each individual user by exploiting the mutual information carried by the other users due to the interrelation between them. Moreover, it implies not only the recovery of the transmitted signals in the best possible conditions but also noise reduction/elimination and interference cancellation.…”

Section: Multiuser Cdma Systemsmentioning

confidence: 99%

“…These way bandwidth requirements led to the search for protocols that could be used to maximize bandwidth occupancy. In the third and fourth generation mobile communication systems the Code Division Multiple Access technique proved to be a solution to accommodate multiple users with different rate and Quality of Service requirements in the same bandwidth at the same time [1][2][3]. Multiuser detection (MUD) techniques have been introduced to mitigate multiple access interference (MAI) by detecting jointly the data from all users in order to increase the overall system performances.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Implication of LDPC Technique in Non-ideal Multiuser Communication System

Marcu

Halunga

2015

Wireless Pers Commun

View full text Add to dashboard Cite

The present paper analyzes the effect of LDPC coding on the performances of a CDMA DS-SS multiuser system. Two types of detectors are analyzed, namely the conventional matched filter and the MMSE ones, in the ideal case-when the spreading codes are perfectly orthogonal and in a non-ideal one-when the users are more or less intercorrelated. Regarding the communication channel, several cases have been taken into consideration, from pure AWGN or Gaussian Mixture Noise to Rayleigh and Rice fading with different parameters. A large number of simulations have been performed using the Monte Carlo technique and the results are summarized and compared in the final part. Based on those results a number of interesting conclusions are highlighted in the Conclusion section.

show abstract

Section: Multiuser Cdma Systemsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%