TY - GEN
T1 - Virtual full-duplex wireless communication via rapid on-off-division duplex
AU - Guo, Dongning
AU - Zhang, Lei
PY - 2010
Y1 - 2010
N2 - This paper introduces a novel paradigm for designing the physical and medium access control (MAC) layers of mobile ad hoc or peer-to-peer networks formed by half-duplex radios. A node equipped with such a radio cannot simultaneously transmit and receive useful signals at the same frequency. Unlike in conventional designs, where a node's transmission frames are scheduled away from its reception, each node transmits its signal through a randomly generated on-off duplex mask (or signature) over every frame interval, and receive a signal through each of its own off-slots. This is called rapid on-off-division duplex (RODD). Over the period of a single frame, every node can transmit a message to some or all of its peers, and may simultaneously receive a message from each peer. Thus RODD achieves virtual full-duplex communication using half-duplex radios and can simplify the design of higher layers of a network protocol stack significantly. The throughput of RODD is evaluated under some general settings, which is significantly larger than that of ALOHA. RODD is especially efficient in case the dominant traffic is simultaneous broadcast from nodes to their one-hop peers, such as in spontaneous wireless social networks, emergency situations or on battlefield. Important design issues of peer discovery, distribution of on-off signatures, synchronization and error-control coding are also addressed.
AB - This paper introduces a novel paradigm for designing the physical and medium access control (MAC) layers of mobile ad hoc or peer-to-peer networks formed by half-duplex radios. A node equipped with such a radio cannot simultaneously transmit and receive useful signals at the same frequency. Unlike in conventional designs, where a node's transmission frames are scheduled away from its reception, each node transmits its signal through a randomly generated on-off duplex mask (or signature) over every frame interval, and receive a signal through each of its own off-slots. This is called rapid on-off-division duplex (RODD). Over the period of a single frame, every node can transmit a message to some or all of its peers, and may simultaneously receive a message from each peer. Thus RODD achieves virtual full-duplex communication using half-duplex radios and can simplify the design of higher layers of a network protocol stack significantly. The throughput of RODD is evaluated under some general settings, which is significantly larger than that of ALOHA. RODD is especially efficient in case the dominant traffic is simultaneous broadcast from nodes to their one-hop peers, such as in spontaneous wireless social networks, emergency situations or on battlefield. Important design issues of peer discovery, distribution of on-off signatures, synchronization and error-control coding are also addressed.
KW - Ad hoc network
KW - Half-duplex
KW - Multiaccess channel
KW - Neighbor discovery
KW - Random access
KW - Wireless peer-to-peer networks
UR - http://www.scopus.com/inward/record.url?scp=79952369909&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79952369909&partnerID=8YFLogxK
U2 - 10.1109/ALLERTON.2010.5706936
DO - 10.1109/ALLERTON.2010.5706936
M3 - Conference contribution
AN - SCOPUS:79952369909
SN - 9781424482146
T3 - 2010 48th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2010
SP - 412
EP - 419
BT - 2010 48th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2010
T2 - 48th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2010
Y2 - 29 September 2010 through 1 October 2010
ER -