Fwd: Dr. Paulraj: Wireless Networking Seminar Series

[Vignesh Iyer]

---------- Forwarded message ----------
From: VIGNESH G <ee08...@ee.iitm.ac.in>
Date: Tue, May 28, 2013 at 6:16 PM

---------- Forwarded message ----------
From: Radhakrishna Ganti <rga...@ee.iitm.ac.in>
Date: Tue, May 28, 2013 at 5:57 PM
Subject: Fwd: Dr. Paulraj: Wireless Networking Seminar Series
To: ABISHEK S <ee08...@ee.iitm.ac.in>, VIGNESH G <ee08...@ee.iitm.ac.in>, Mali Sundaresan <s.mali...@gmail.com>

FYI. Can you please make sure that all the BTech and DDs get the email.

Also try to attend the talk.

-RK

---------- Forwarded message ----------
From: Radhakrishna Ganti <rga...@ee.iitm.ac.in>
Date: Tue, May 14, 2013 at 10:15 AM
Subject: Dr. Paulraj: Wireless Networking Seminar Series
To: "wirele...@googlegroups.com" <wirele...@googlegroups.com>, "MS & Ph.D" <ms...@ee.iitm.ac.in>, students <stud...@ee.iitm.ac.in>, faculty <fac...@ee.iitm.ac.in>

Hi all,

Dr. Arogyaswami J Paulraj from Stanford will be giving a talk on 29th at 10AM.

 As most of you know he is a pioneer of MIMO and has won numerous awards including

Graham Bell Award.  http://en.wikipedia.org/wiki/Arogyaswami_Paulraj

The details of his talk are as follows:

Title: Power Combining Networks in MIMO Wireless

Date: 29th May
Time: 10 AM
Venue: ESB 244

Abstract: MIMO wireless uses multiple transmit antennas. Practical systems typically have a power amplifier for each antenna with a specific power limit (i.e.,  per-antenna power constraint (PAPC)). In presence of antenna selective fading which is commonly encountered, PAPC causes performance loss. A MIMO system with a sum power constraint,  suffers less loss. However, sum power constraint can be expensive and has PA poor efficiency.

This talk proposes a Power Combing Network (PCN) to alleviate the loss from PAPC. A PCN can steer power from the PAs assigned to antennas with faded links to antennas with stronger links.

We examine PCN applications to MIMO transmission with and without channel knowledge at the transmitter, and propose fast methods to identifying the appropriate PCN configuration and related parameters.

A PCN using a 2x2 hybrid has been used in WiMAX client devices with good results and will also be discussed.

-Regards

Radha Krishna

--

Asst. Professor,  Dept. of Electrical Engineering,  IIT Madras.

Web: http://www.ee.iitm.ac.in/~rganti/

--

Asst. Professor,  Dept. of Electrical Engineering,  IIT Madras.

Web: http://www.ee.iitm.ac.in/~rganti/