TY - GEN
T1 - Enhancement of HCCA utilizing capture effect to support high QoS and DCF friendliness
AU - Kanda, Masanori
AU - Katto, Jiro
AU - Murase, Tutomu
N1 - Funding Information:
ACKNOWLEDGMENT: This research is supported by Grant-in-Aid for Scientific Research (B) (15H02688) of JSPS in Japan.
PY - 2016/3/30
Y1 - 2016/3/30
N2 - With increase of mobile wireless LAN systems, frequency contamination by the overlapping basic service set (OBSS) becomes a critical issue. In this paper, we focus on HCF controlled channel access (HCCA) to alleviate the OBSS problem. HCCA considers single BSS (SBSS) environment only and suppresses traffic of co-existing DCF (distributed coordination function) based WiFi access points (APs). We propose two methods that utilize capture effects to improve the coexistence capability with DCF networks, that we call DCF friendliness. The first method adjusts transmission timing in HCCA WLAN by applying inter-AP coordination. The second method enables simultaneous communication with surrounding DCF WLANs by changing the frame interval of HCCA to DIFS+1 SlotTime. Simulations show that both the proposed method can achieve higher throughput and better DCF friendliness.
AB - With increase of mobile wireless LAN systems, frequency contamination by the overlapping basic service set (OBSS) becomes a critical issue. In this paper, we focus on HCF controlled channel access (HCCA) to alleviate the OBSS problem. HCCA considers single BSS (SBSS) environment only and suppresses traffic of co-existing DCF (distributed coordination function) based WiFi access points (APs). We propose two methods that utilize capture effects to improve the coexistence capability with DCF networks, that we call DCF friendliness. The first method adjusts transmission timing in HCCA WLAN by applying inter-AP coordination. The second method enables simultaneous communication with surrounding DCF WLANs by changing the frame interval of HCCA to DIFS+1 SlotTime. Simulations show that both the proposed method can achieve higher throughput and better DCF friendliness.
KW - HCCA
KW - HEW
KW - OBSS
KW - Wireless LAN
UR - http://www.scopus.com/inward/record.url?scp=84966549528&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84966549528&partnerID=8YFLogxK
U2 - 10.1109/CCNC.2016.7444802
DO - 10.1109/CCNC.2016.7444802
M3 - Conference contribution
AN - SCOPUS:84966549528
T3 - 2016 13th IEEE Annual Consumer Communications and Networking Conference, CCNC 2016
SP - 335
EP - 338
BT - 2016 13th IEEE Annual Consumer Communications and Networking Conference, CCNC 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 13th IEEE Annual Consumer Communications and Networking Conference, CCNC 2016
Y2 - 6 January 2016 through 13 January 2016
ER -