Accession Number : ADA461349


Title :   A Receiver-Initiated Collision-Avoidance Protocol for Multi-Channel Networks


Descriptive Note : Research paper


Corporate Author : CALIFORNIA UNIV SANTA CRUZ


Personal Author(s) : Tzamaloukas, Asimakis ; Garcia-Luna-Aceves, J J


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a461349.pdf


Report Date : Jan 2001


Pagination or Media Count : 11


Abstract : The medium-access control (MAC) protocols for wireless networks proposed or implemented to date based on collision-avoidance handshakes between sender and receiver either require carrier sensing or the assignment of unique codes to nodes to ensure that intended receivers hear data packets without interference from hidden sources. We present and analyze a new collision-avoidance MAC protocol that we call receiver-initiated channel-hopping with dual polling (RICH-DP). RICH-DP is the first MAC protocol based on a receiver-initiated collision-avoidance handshake that does not require carrier sensing or the assignment of unique codes to nodes in order to ensure collision-free reception of data at the intended receivers in the presence of hidden terminals. The throughput and delay characteristics of RICH-DP is studied analytically, and extensive simulations are presented to verify the analysis and to present a more accurate prediction of how RICH-DP would operate in realistic scenarios. RICH-DP is applicable to ad-hoc networks based on commercial off-the-shelf frequency hopping radios operating in unlicensed frequency bands.


Descriptors :   *COMMUNICATIONS NETWORKS , *COLLISION AVOIDANCE , *MULTICHANNEL , SIMULATION , PREDICTIONS , SPREAD SPECTRUM , WIRELESS LINKS , PERFORMANCE(ENGINEERING) , RADIO LINKS , NODES , FREQUENCY BANDS


Subject Categories : Electrical and Electronic Equipment
      Radiofrequency Wave Propagation
      Radio Communications


Distribution Statement : APPROVED FOR PUBLIC RELEASE