On the Capacity and Transmission Techniques of Massive MIMO Systems

Author

Abdul Haleem, Mohamed

Source

Wireless Communications and Mobile Computing

Issue

Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-9, 9 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2018-07-17

Country of Publication

Egypt

No. of Pages

9

Main Subjects

Information Technology and Computer Science

Abstract EN

A massive MIMO wireless system is a multiuser MISO system where base stations consist of a large number of antennas with respect to number of user devices, each equipped with a single antenna.

Massive MIMO is seen as the way forward in enhancing the transmission rate and user capacity in 5G wireless.

The potential of massive MIMO system lies in the ability to almost always realize multiuser channels with near zero mutual coupling.

Coupling factor reduces by 1/2 for each doubling of transmit antennas.

In a high bit rate massive MIMO system with m base station antennas and n users, downlink capacity increases as log2m bps/Hz, and the capacity per user reduces as log2n bps/Hz.

This capacity can be achieved by power sharing and using signal weighting vectors aligned to respective 1×m channels of the users.

For low bit rate transmission, time sharing achieves the capacity as much as power sharing does.

System capacity reduces as channel coupling factor increases.

Interference avoidance or minimization strategies can be used to achieve the available capacity in such scenarios.

Probability distribution of channel coupling factor is a convenient tool to predict the number of antennas needed to qualify a system as massive MIMO.

American Psychological Association (APA)

Abdul Haleem, Mohamed. 2018. On the Capacity and Transmission Techniques of Massive MIMO Systems. Wireless Communications and Mobile Computing،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1216395

Modern Language Association (MLA)

Abdul Haleem, Mohamed. On the Capacity and Transmission Techniques of Massive MIMO Systems. Wireless Communications and Mobile Computing No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1216395

American Medical Association (AMA)

Abdul Haleem, Mohamed. On the Capacity and Transmission Techniques of Massive MIMO Systems. Wireless Communications and Mobile Computing. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1216395

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1216395