Alternating opportunistic large arrays in broadcasting for network lifetime extension

We propose a protocol for broadcasting in wireless multihop networks that is based on a form of cooperative transmission called the opportunistic large array (OLA). An SNR ("transmission") threshold is used to define two mutually exclusive sets of OLAs, such that the union of the sets includes all the nodes in the network. The broadcast protocol then alternates between the sets for each broadcast and is called Alternating OLA with Transmission Threshold (A-OLA-T). Under A-OLAT, all participating nodes transmit with the same low power, therefore the energies of the nodes in the network drain efficiently and uniformly, extending the network life relative to broadcasts that use simple OLA or non-alternating OLAs with a transmission threshold. In this paper, we optimize the A-OLA-T protocol under the continuum assumption (very high node density).

[1]  Mary Ann Ingram,et al.  A simple cooperative transmission protocol for energy-efficient broadcasting over multi-hop wireless networks , 2008, Journal of Communications and Networks.

[2]  Mary Ann Ingram,et al.  Routing Protocols for Wireless Sensor Networks that have an Opportunistic Large Array (OLA) Physical Layer , 2009, Ad Hoc Sens. Wirel. Networks.

[3]  Gregory W. Wornell,et al.  Cooperative diversity in wireless networks: Efficient protocols and outage behavior , 2004, IEEE Transactions on Information Theory.

[4]  Roy D. Yates,et al.  Cooperative multihop broadcast for wireless networks , 2004, IEEE Journal on Selected Areas in Communications.

[5]  Anna Scaglione,et al.  Asymptotic analysis of multistage cooperative broadcast in wireless networks , 2006, IEEE Transactions on Information Theory.

[6]  Anna Scaglione,et al.  Energy-efficient broadcasting with cooperative transmissions in wireless sensor networks , 2006, IEEE Transactions on Wireless Communications.

[7]  Elza Erkip,et al.  User cooperation diversity. Part I. System description , 2003, IEEE Trans. Commun..

[8]  U. Mitra,et al.  Cooperative communication and routing over fading channels in wireless sensor networks , 2005, 2005 International Conference on Wireless Networks, Communications and Mobile Computing.

[9]  Aggelos Bletsas,et al.  A simple Cooperative diversity method based on network path selection , 2005, IEEE Journal on Selected Areas in Communications.

[10]  U. Madhow,et al.  Spread-spectrum techniques for distributed space-time communication in sensor networks , 2004, Conference Record of the Thirty-Eighth Asilomar Conference on Signals, Systems and Computers, 2004..

[11]  Matthew C. Valenti,et al.  Exploiting macrodiversity in dense multihop networks and relay channels , 2003, 2003 IEEE Wireless Communications and Networking, 2003. WCNC 2003..

[12]  Moe Z. Win,et al.  Energy Efficiency of Dense Wireless Sensor Networks: To Cooperate or Not to Cooperate , 2006, 2006 IEEE International Conference on Communications.

[13]  Anna Scaglione,et al.  On the power efficiency of cooperative broadcast in dense wireless networks , 2007, IEEE Journal on Selected Areas in Communications.