TY - GEN
T1 - Overheard ACK with token passing
T2 - 6th ACM MobiCom Workshop on Wireless of the Students, by the Students, for the Students, S3 2014
AU - Ahsan, Shegufta Bakht
AU - Vaidya, Nitin
PY - 2014
Y1 - 2014
N2 - Distributed Coordination Function (DCF) is defined in IEEE 802.11 standard, which is widely used in practice. Despite of its wide use, it has several limitations. Because of the idle and collision times, it suffers from poor channel utilization. Besides, the control packets, particularly, Acknowledgement (ACK), consume non-trivial amount of bandwidth. Though the number of control bits in an ACK frame is small, the added overheads like the preamble, packet header etc. make the situation worse. In this paper, we propose a scheme called Overheard ACK where the explicit ACK frame has been eliminated by using the leverage of packet overhearing. Also, by incorporating explicit and implicit token-passing, this protocol attempts to schedule transmissions without having to use random access, dramatically reducing the idle time and collision time. Simulation results using NS2 confirm that this protocol significantly outperforms the conventional 802.11 DCF.
AB - Distributed Coordination Function (DCF) is defined in IEEE 802.11 standard, which is widely used in practice. Despite of its wide use, it has several limitations. Because of the idle and collision times, it suffers from poor channel utilization. Besides, the control packets, particularly, Acknowledgement (ACK), consume non-trivial amount of bandwidth. Though the number of control bits in an ACK frame is small, the added overheads like the preamble, packet header etc. make the situation worse. In this paper, we propose a scheme called Overheard ACK where the explicit ACK frame has been eliminated by using the leverage of packet overhearing. Also, by incorporating explicit and implicit token-passing, this protocol attempts to schedule transmissions without having to use random access, dramatically reducing the idle time and collision time. Simulation results using NS2 confirm that this protocol significantly outperforms the conventional 802.11 DCF.
KW - Packet Overhearing
KW - Token Passing
UR - http://www.scopus.com/inward/record.url?scp=84908584120&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84908584120&partnerID=8YFLogxK
U2 - 10.1145/2645884.2645886
DO - 10.1145/2645884.2645886
M3 - Conference contribution
AN - SCOPUS:84908584120
T3 - S3 2014 - Proceedings of the 6th ACM MobiCom Workshop on Wireless of the Students, by the Students, for the Students
SP - 9
EP - 11
BT - S3 2014 - Proceedings of the 6th ACM MobiCom Workshop on Wireless of the Students, by the Students, for the Students
PB - Association for Computing Machinery, Inc
Y2 - 7 September 2014 through 7 September 2014
ER -