TY - JOUR
T1 - A cognitive TCP design for a cognitive radio network with an unstable-bandwidth link
AU - Cheng, Yu Chun
AU - Chou, Cheng Fu
AU - Wu, Eric Hsiaokuang
AU - Chen, Gen Huey
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2015/10/1
Y1 - 2015/10/1
N2 - In recent years, wireless network structures and mechanisms have been proposed to enhance the efficiency of communications. Regarding the upper-layer of protocol stacks, wireless transmission control protocols (WTCPs) are proposed to deal with transmission control protocol (TCP) performance problems on wireless networks. However, some new lower-layer solutions, e.g., cognitive radio (CR) systems, cause new throughput decay problems to TCPs, which existing WTCPs do not solve. In this paper, we study throughput decay issues in CR environments and discuss three events that cause these problems. Three event handlers are proposed to improve TCP throughput. The proposed solutions are designed by numerical analysis, and performance improvement is verified by NS2. We propose an event-driven CR-TCP that combines these event handlers, which can be combined with state-of-art CR-TCP solutions. Simulation results and analysis are presented to demonstrate the effectiveness of the proposed solution.
AB - In recent years, wireless network structures and mechanisms have been proposed to enhance the efficiency of communications. Regarding the upper-layer of protocol stacks, wireless transmission control protocols (WTCPs) are proposed to deal with transmission control protocol (TCP) performance problems on wireless networks. However, some new lower-layer solutions, e.g., cognitive radio (CR) systems, cause new throughput decay problems to TCPs, which existing WTCPs do not solve. In this paper, we study throughput decay issues in CR environments and discuss three events that cause these problems. Three event handlers are proposed to improve TCP throughput. The proposed solutions are designed by numerical analysis, and performance improvement is verified by NS2. We propose an event-driven CR-TCP that combines these event handlers, which can be combined with state-of-art CR-TCP solutions. Simulation results and analysis are presented to demonstrate the effectiveness of the proposed solution.
KW - Mobile communication systems
KW - Protocol design and analysis
KW - Protocols
KW - Wireless communication
UR - http://www.scopus.com/inward/record.url?scp=84942475215&partnerID=8YFLogxK
U2 - 10.1109/TC.2014.2375186
DO - 10.1109/TC.2014.2375186
M3 - 期刊論文
AN - SCOPUS:84942475215
SN - 0018-9340
VL - 64
SP - 2730
EP - 2740
JO - IEEE Transactions on Computers
JF - IEEE Transactions on Computers
IS - 10
M1 - 6983611
ER -