Recent Advances in MIMO and Multi-User MIMO: From Theoretical to Practical

PhD Qualifying Examination


Title: "Recent Advances in MIMO and Multi-User MIMO: From Theoretical
to Practical"

by

Mr. Haochao LI


Abstract:

Due to the popularization of smartphones, pads and laptops, mobile
data traffic is growing exponentially and wireless communication is
becoming an indispensable part of people's daily life. Although the
capability of the conventional single-antenna hardware continues to
grow, the demand of mobile data traffic grows even faster. With
regards to the ever-growing demands of mobile data, considering merely
the limited time and frequency domains is not sufficient anymore, the
previously unused spatial domain is then exploited and
Multiple-Input-Multiple-Output (MIMO) is the emerging technique in
this field which exploits the spatial properties of wireless channels
to achieve significant system gains, without the expense of additional
bandwidth by taking advantages of spatial multiplexing and/or spatial
diversity. Though MIMO can boost the network capacity to some extent,
it has its own limitations to deal with the further growing demands of
wireless data, i.e., the throughput of this design is always limited
by the number of antennas equipped in the devices. Since the APs/BSs
generally have much more antennas then each mobile client devices, in
order to further increase the network capacity, it is then attractive
to allow multiple clients to concurrently communicate with the AP/BS
by using Multi-User MIMO (MU-MIMO).

In this survey, we will examine the design and inherent
characteristics of the recent advances in both MIMO and MU-MIMO.
Specifically, we will focus on the state-of-the-art working systems
and applications in this area. By identifying the important challenges
and research issues on these systems and applications, we then further
discuss the pros and cons of each system design and suggest the
potential improvements and future research trend.


Date:			Wednesday, 20 March 2013

Time:	 		2:00pm - 4:00pm

Venue:   		Room 4480
 		        Lifts 25/26

Committee Members:	Prof. Lionel Ni (Supervisor)
  			Prof. Qian Zhang (Chairperson)
  			Dr. Lei Chen
  			Dr. Ke Yi


**** ALL are Welcome ****