PATENTS
GRANTED

1. Method and system for maximum transmit diversity,
(United States Patent No:7,450,662 B2, Date: November 11, 2008.)
Inventors: Vummintala Shashidhar, Arogyaswami Paulraj, Erik David Lindskog, Balaji Sundar Rajan, Djordje Tujkovic.

2. Method and system for rate-2 transmission,
(United States Patent No: 7,466,759 B2, Date: December 16, 2008.)
Inventors: Vummintala Shashidhar, Arogyaswami Paulraj, Erik David Lindskog, Balaji Sundar Rajan, Djordje Tujkovic.

3. Method and system for rate-2 transmission,
(United States Patent No: 7,477,698, Date: January 13, 2009.)
Inventors: Vummintala Shashidhar, Arogyaswami Paulraj, Erik David Lindskog, Balaji Sundar Rajan, Djordje Tujkovic.

4. Method and system for maximum transmit diversity,
(United States Patent No: 7,586,997, Date: September 8, 2009.)
Inventors: Vummintala Shashidhar, Arogyaswami Paulraj, Erik David Lindskog, Balaji Sundar Rajan, Djordje Tujkovic.

5. Method and system for determining a Log-Likelihood Ratio (LLR) corresponding to each bit of a symbol,
(United States Patent No: 7,684,522 B2, Date: March 23, 2010.)
Inventors: Vummintala Shashidhar, Ramanath Sreenath, and Balaji Sundar Rajan.

6. Data Transmission in Wireless Communication System,
(US Patent No: US 8,111,779 B2); Date: Feb. 07, 2012.
Inventors: Pavan Srinath K. and B. Sundar Rajan.

7. Leveraging coherent distributed space-time codes for non-coherent communication in relay networks via training,
(US Patent No: US 8,089,916 B2); Date: Jan. 03, 2012.
Inventors: G. Susinder Rajan and B. Sundar Rajan.

8. Method to detect data transmitted from multiple antennas and systems thereof,
(US Patent No: US 8,116,411 B2); Date: Feb.14, 2012.
Inventors: Chockalingam; Ananthanarayanan; Rajan; Balaji Sundar; Vardhan; Kalepalli Vishnu; Mohammed; Saif Khan.

9. Data Transmission in Wireless Communication System.
(US Patent No: US 8,279,964 B2); Date: Oct. 02, 2012.)
Inventors: Pavan Srinath K. and B. Sundar Rajan.


10. Device and method for precoding vectors in a communication system,
(US Patent No: US 8,320,432 B1); Date: Nov.27, 2012.
Inventors: Chockalingam; Ananthanarayanan; Rajan; Balaji Sundar; Mohammed; Saif Khan.

11. Techniques for decoding transmitted signals using Reactive Taboo Searches (RTS),
(US Patent No: US 8,503,544 B2); Date: Aug. 06, 2013.
Inventors: Chockalingam; Ananthanarayanan; Rajan; Balaji Sundar; Srinidhi Nagaraja; Mohammed; Saif Khan.

12. Method to detect data transmitted by multiple antennas,
(US Patent No: US 8,605,808 B2); Date: Dec. 10, 2013.
Inventors: Chockalingam; Ananthanarayanan; Rajan; Balaji Sundar; Mohammed; Saif Khan.

13. Techniques for detection of signals in multiple-input multiple-output communication systems,
(US Patent No: US 8,634,490 B2); Date: Jan. 21, 2014.
Inventors: Chockalingam; Ananthanarayanan; Rajan; Balaji Sundar; Srinidhi Nagaraja, Tanumay Datta.

14. Multiple Input Multiple Output (MIMO) transmitted signal vector estimation employing Monte Carlo sampling techniques,
(US Patent No: US 8,675,780 B2); Date: Mar. 18, 2014.
Inventors: Chockalingam; Ananthanarayanan; Rajan; Balaji Sundar; Tanumay Datta; Ashok Kumar N.

15. Techniques for decoding transmitted signals using Reactive Taboo Searches (RTS),
(US Patent No: US 8,804, 858 B2); Date: Aug. 12, 2014.
Inventors: Chockalingam; Ananthanarayanan; Rajan; Balaji Sundar; Srinidhi Nagaraja; Mohammed; Saif Khan.

16. Device and method for precoding vectors in a communication system,
(US Patent No: US 8,964, 889 B2); Date: Feb. 24, 2015.
Inventors: Chockalingam; Ananthanarayanan; Rajan; Balaji Sundar; Mohammed; Saif Khan.



FILED (US PATENTS) (Patent Application Publications):

1. Method and system for signal detection using a reduced transmitter constellation,
(US Patent; Pub. No: US 2006/0251181 A1; Pub. Date: Nov. 9, 2006.)
Inventors: Vummintala Shashidhar and Balaji Sundar Rajan.




PROJECTS AND CONSULTANCY

1. Algorithms for Minimal Trellis Construction and Fast Decoding in Coded Communication Systems (CSIR, India)

2. Algebraic Geometric Codes (NOKIA RESEARCH CENTER, Finland)

3. Turbo Coding, Iterative Decoding and Graphical Models (DST, India)

4. Investigations on Group Codes and Asymptotically Good Euclidean Space Codes (CSIR, India)

5. Space-Time Codes from Orthogonal Designs and Field Extensions (DRDO-IISc Program on Advanced Research in Mathematical Engineering)

6. Space-Time Block Codes for MIMO block-fading channels using Designs and Algebras (DRDO-IISc Program on Advanced Research in Mathematical Engineering)

7. Signal Design and Decoding algorithms for Multi-Antenna Communication Systems (CSIR, India) (Co-Investigator: Prof. Utpal Mukherji)

8. MIMO Wireless Communication Systems (Beceem Communications Pvt. Ltd., Bangalore).

9. Low-complexity Space-Time Codes for MIMO and Cooperative Communication (DRDO-IISc Program on Advanced Research in Mathematical Engineering)

10. Space-Time Coding for Wireless Communication Systems (Beceem Communications Pvt. Ltd., Bangalore)

11. Coding for Multi-User-MIMO (MU-MIMO) Communication and Network-Error Correction (DRDO-IISc Program on Advanced Research in Mathematical Engineering)