TY - GEN
T1 - An improved 802.11 DCF in a hybrid environment
AU - Wu, Zong Jhe
AU - Huang, Jeng Ji
PY - 2009
Y1 - 2009
N2 - Distributed coordination function (DCF) is the main technique of IEEE 802.11, which relies on carrier sense multiple access/collision avoidance (CSMAICA) to reduce collision among stations. In this paper, a scheme is proposed to improve the throughput performance of the DCF in a hybrid environment, where a ready to send (RTS) frame is used when the length of a packet exceeds a threshold. Suppose, e.g., that a RTS frame and a packet are transmifted simultaneously, the result under the legacy DCF is that a collision occurs and both of them fail; the transmission bandwidth is thus wasted. To prevent this, an extra portion is added in front of the packet in the proposed scheme, and its length equals the size of a RTS frame. Clearly, it can prevent the packet from the collision process whenever it experiences a collision with one or multiple RTS frames.
AB - Distributed coordination function (DCF) is the main technique of IEEE 802.11, which relies on carrier sense multiple access/collision avoidance (CSMAICA) to reduce collision among stations. In this paper, a scheme is proposed to improve the throughput performance of the DCF in a hybrid environment, where a ready to send (RTS) frame is used when the length of a packet exceeds a threshold. Suppose, e.g., that a RTS frame and a packet are transmifted simultaneously, the result under the legacy DCF is that a collision occurs and both of them fail; the transmission bandwidth is thus wasted. To prevent this, an extra portion is added in front of the packet in the proposed scheme, and its length equals the size of a RTS frame. Clearly, it can prevent the packet from the collision process whenever it experiences a collision with one or multiple RTS frames.
KW - Camera-ready
KW - Distributed coordination function (DCF)
KW - IEEE 802.11 wireless local area network (WLAN)
KW - IEEE format
KW - Preparation of papers
KW - Two-column format
UR - http://www.scopus.com/inward/record.url?scp=70449094526&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70449094526&partnerID=8YFLogxK
U2 - 10.1109/ICUFN.2009.5174312
DO - 10.1109/ICUFN.2009.5174312
M3 - Conference contribution
AN - SCOPUS:70449094526
SN - 9781424442164
T3 - 2009 1st International Conference on Ubiquitous and Future Networks, ICUFN 2009
SP - 203
EP - 207
BT - 2009 1st International Conference on Ubiquitous and Future Networks, ICUFN 2009
T2 - 2009 1st International Conference on Ubiquitous and Future Networks, ICUFN 2009
Y2 - 7 June 2009 through 9 June 2009
ER -