TY - JOUR
T1 - An incentivized cooperative architecture for dynamic spectrum access networks
AU - Xin, Chunsheng
AU - Song, Min
AU - Ma, Liangping
AU - Hsieh, George
AU - Shen, Chien Chung
PY - 2013/10
Y1 - 2013/10
N2 - The existing dynamic spectrum access network architecture fails to offer incentives to primary users (PUs). Therefore, PUs are unwilling to cooperate with secondary users (SUs) and intend to set up stringent requirements on SUs' spectrum access. This diminishes the benefit of dynamic spectrum access and hinders its commercialization success. In this paper, we propose a novel architecture for dynamic spectrum access networks, termed incentivized cooperative dynamic spectrum access network (IC-DSAN), to motivate PUs to cooperate with SUs, such that both PUs and SUs achieve significantly higher performance. In an IC-DSAN, SU nodes serve as relays between PU nodes and while relaying PU packets, utilize network coding to encode SU packets onto PU packets, i.e., SU packets get a 'free ride' via network coding. To further improve the performance, we propose a new network coding scheme termed coding over coded packets. At last, an optimization model is developed to analyze the throughput gain of IC-DSAN. The performance evaluation indicates that the throughputs of both PUs and SUs significantly increase.
AB - The existing dynamic spectrum access network architecture fails to offer incentives to primary users (PUs). Therefore, PUs are unwilling to cooperate with secondary users (SUs) and intend to set up stringent requirements on SUs' spectrum access. This diminishes the benefit of dynamic spectrum access and hinders its commercialization success. In this paper, we propose a novel architecture for dynamic spectrum access networks, termed incentivized cooperative dynamic spectrum access network (IC-DSAN), to motivate PUs to cooperate with SUs, such that both PUs and SUs achieve significantly higher performance. In an IC-DSAN, SU nodes serve as relays between PU nodes and while relaying PU packets, utilize network coding to encode SU packets onto PU packets, i.e., SU packets get a 'free ride' via network coding. To further improve the performance, we propose a new network coding scheme termed coding over coded packets. At last, an optimization model is developed to analyze the throughput gain of IC-DSAN. The performance evaluation indicates that the throughputs of both PUs and SUs significantly increase.
KW - Cooperative network
KW - dynamic spectrum access network
KW - incentivization
KW - network architecture
UR - http://www.scopus.com/inward/record.url?scp=84890122983&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84890122983&partnerID=8YFLogxK
U2 - 10.1109/TWC.2013.090413.122052
DO - 10.1109/TWC.2013.090413.122052
M3 - Article
AN - SCOPUS:84890122983
SN - 1536-1276
VL - 12
SP - 5154
EP - 5161
JO - IEEE Transactions on Wireless Communications
JF - IEEE Transactions on Wireless Communications
IS - 10
M1 - 6596081
ER -