On Limits of Wireless Communications in a Fading Environment when UsingMultiple Antennas
Wireless Personal Communications: An International Journal
On maximum-likelihood detection and the search for the closest lattice point
IEEE Transactions on Information Theory
MIMO Broadcast Channels With Finite-Rate Feedback
IEEE Transactions on Information Theory
An introduction to the multi-user MIMO downlink
IEEE Communications Magazine
A simple transmit diversity technique for wireless communications
IEEE Journal on Selected Areas in Communications
Buffer sizing in TxSDMA systems
MACOM'11 Proceedings of the 4th international conference on Multiple access communications
Multi standard system level simulation framework for evaluation of mobile broadband networks
Proceedings of the 14th Communications and Networking Symposium
The Role of the Queueing Process in the Performance of Downlink SDMA Systems
Wireless Personal Communications: An International Journal
Wireless Personal Communications: An International Journal
Performance Model of a WIMAX 2.0 All-IP 4G System
Wireless Personal Communications: An International Journal
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IEEE 802.16m and 3GPP LTE-Advanced are the two evolving standards targeting 4G wireless systems. In both standards, multiple-input multiple-output antenna technologies play an essential role in meeting the 4G requirements. The application of MIMO technologies is one of the most crucial distinctions between 3G and 4G. It not only enhances the conventional point-to-point link, but also enables new types of links such as downlink multiuser MIMO. A large family of MIMO techniques has been developed for various links and with various amounts of available channel state information in both IEEE 802.16e/m and 3GPP LTE/LTE-Advanced. In this article we provide a survey of the MIMO techniques in the two standards. The MIMO features of the two are compared, and the engineering considerations are depicted.