Now showing items 1-5 of 5

  • COOPERATIVE COMMUNICATIONS: Fundamental Limits and Practical Implementation 

    Chakrabarti, Arnab; Sabharwal, Ashutosh; Aazhang, Behnaam (2006-01-01)
    This chapter summarizes theoretically achievable gains and the construction of practical codes for user-cooperation. Most of these results relate to the relay channel, which is a three-terminal channel that captures the ...
  • Delay and DOA estimation in CDMA communication systems via maximum likelihood techniques 

    Madyastha, Raghu; Aazhang, Behnaam (1997-10-20)
    We present a maximum likelihood method for delay estimation in a CDMA wireless communication system. An antenna array is used at the receiver, which facilitates the concomitant estimation of the direction of arrival (DOA) ...
  • Distributed Cooperative Communications in Wireless Networks 

    Khojastepour, Mohammad (2005-01-01)
    The primary challenge in communication over wireless networks, unlike wireline networks, is the existence of interference and channel variations (fading). Having more users at higher data rates means that current ...
  • Exploiting Feedback in Cooperative Relay Networks 

    Ahmed, Nasir (2005-08-01)
    Recent results on multiple antenna transmission techniques have shown great po- tential in their ability to improve the overall performance in fading channels. Despite the promise shown by employing multiple antenna's, ...
  • Non-coherent and Partially Coherent Space-Time Constellations 

    Borran, Mohammad Jaber (2003-06-01)
    With the rapid growth of wireless networks and multimedia applications, next generation cellular systems are expected to support data rates that are orders of magnitude higher than those currently available. Due to the ...