TY - GEN
T1 - Probabilistic-based adaptive full-duplex and half-duplex medium access control
AU - Chen, Shih Ying
AU - Huang, Ting Feng
AU - Lin, Kate Ching Ju
AU - Hong, Y. W.Peter
AU - Sabharwal, Ashutosh
N1 - Funding Information:
Kate Ching-Ju Lin was partially supported by the National Science Council of R.O.C. under contract No. MOST 103-2221-E-001-017-MY2 and MOST 104-2628-E-001-004-MY2 and Academia Sinica of R.O.C. under project No. AS-104-TP-A05. Y.-W. Peter Hong was partially supported by the National Science Council of R.O.C. under contract No. MOST 104-3115-E-007-003. Ashutosh Sabharwal was partially supported by NSF Grants CNS-1161596 and CNS-1314822.
Publisher Copyright:
© 2015 IEEE.
PY - 2015
Y1 - 2015
N2 - The feasibility of practical in-band full-duplex radios has recently been demonstrated experimentally. One way to leverage full-duplex in a network setting is to enable three-node full-duplex, where a full-duplex access point (AP) transmits data to one node yet simultaneously receives data from another node. Such three-node full-duplex communication however introduces inter-client interference, directly impacting the full-duplex gain. It hence may not always be beneficial to enable three-node full-duplex transmissions. In this paper, we present a distributed full-duplex medium access control (MAC) protocol that allows an AP to adaptively switch between full-duplex and half-duplex modes. We formulate a model that determines the probabilities of full-duplex and half-duplex access so as to maximize the expected network throughput. A MAC protocol is further proposed to enable the AP and clients to contend for either full-duplex or half-duplex transmissions based on their assigned probabilities in a distributed way. Our evaluation shows that, by combining the advantages of centralized probabilistic scheduling and distributed random access, our design improves the overall throughput by 3.16× and 1.44×, on average, as compared to half-duplex 802.11 and greedy downlink-uplink client pairing.
AB - The feasibility of practical in-band full-duplex radios has recently been demonstrated experimentally. One way to leverage full-duplex in a network setting is to enable three-node full-duplex, where a full-duplex access point (AP) transmits data to one node yet simultaneously receives data from another node. Such three-node full-duplex communication however introduces inter-client interference, directly impacting the full-duplex gain. It hence may not always be beneficial to enable three-node full-duplex transmissions. In this paper, we present a distributed full-duplex medium access control (MAC) protocol that allows an AP to adaptively switch between full-duplex and half-duplex modes. We formulate a model that determines the probabilities of full-duplex and half-duplex access so as to maximize the expected network throughput. A MAC protocol is further proposed to enable the AP and clients to contend for either full-duplex or half-duplex transmissions based on their assigned probabilities in a distributed way. Our evaluation shows that, by combining the advantages of centralized probabilistic scheduling and distributed random access, our design improves the overall throughput by 3.16× and 1.44×, on average, as compared to half-duplex 802.11 and greedy downlink-uplink client pairing.
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U2 - 10.1109/GLOCOM.2014.7417126
DO - 10.1109/GLOCOM.2014.7417126
M3 - Conference contribution
AN - SCOPUS:84964895185
T3 - 2015 IEEE Global Communications Conference, GLOBECOM 2015
BT - 2015 IEEE Global Communications Conference, GLOBECOM 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 58th IEEE Global Communications Conference, GLOBECOM 2015
Y2 - 6 December 2015 through 10 December 2015
ER -