Distributed power adjustment in cognitive radio networks using PID control

Matsui, Genki; Nakamura, Yukinori; Tachibana, Takuji; Sugimoto, Kenji; Wakui, Shinji

doi:10.1109/iccais.2012.6466600

Cited by 2 publications

(4 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Various attempts have been made to design MAC protocols for CRNs that are based on the interference-channel model. [18][19][20][21][22][23][25][26][27][28] These power-control protocols require coordination with PUs, which is not realistic as most of the PU receivers are passive that cannot cooperate with SUs. The work of Yang et al 18 investigated the organized cooperation between SUs and the use of Stackelberg game, where the PUs are leaders and SUs are followers.…”

Section: Related Workmentioning

confidence: 99%

“…Various attempts have been made to design MAC protocols for CRNs that are based on the interference‐channel model 20–28 . These power‐control protocols require coordination with PUs, which is not realistic as most of the PU receivers are passive that cannot cooperate with SUs.…”

Section: Related Workmentioning

confidence: 99%

“…The SUs adapt their allowed transmit power level according to predefined maximum interference power of PUs. Matsui et al 19 proposed a distributed power control algorithm using the proportional‐integral‐derivative controller and a dynamic constraint condition from PUs. The SU's transmitter needs to get a feedback from the receiver about signal‐to‐interference noise ratio (SINR).…”

Section: Related Workmentioning

confidence: 99%

“…This will place a limit on the number of admitted SU transmissions, which negatively impacts spectrum utilization. On the other hand, MAC protocols that developed based on the physical model [16][17][18][19][20][21] allow multiple concurrent SU transmissions over the same channel within its neighborhood. This improves spectrum utilization and significantly enhances the network performance.…”

mentioning

confidence: 99%

See 3 more Smart Citations

Spectrum management with simultaneous power‐controlled assignment decisions in cognitive radio networks

Musa

Sannad

Halloush

et al. 2019

Concurrency and Computation

View full text Add to dashboard Cite

Spectrum sharing protocols for cognitive radio networks (CRNs) are often designed based on an exclusive channel occupancy policy. This policy does not allow concurrent cognitive radio (CR) transmissions to take place over the same channel. Unfortunately, this can significantly affect spectrum utilization and network performance. Allowing several secondary users to simultaneously share the same channel naturally improves spectrum utilization and avoids unnecessary blocking of CR transmissions. The key challenge in enabling efficient operation of multichannel CRNs is how to perform efficient power-controlled media-access-control (MAC) protocols. These protocols include both power control and channel assignment. In this paper, we propose a power-controlled MAC protocol for CRNs based on interference-channel occupancy model with the objective of maximizing the number of served CR transmissions. It uses a novel power-controlled channel assignment mechanism that allows several concurrent interference-limited transmissions to simultaneously proceed over each idle channel in the same neighborhood. We present two variants of the power-controlled channel assignment mechanism. The first proposed variant is suitable for CRNs with fixed data packet size, whereas the other is suitable for dynamic CRNs with variable packet size. The second variant of our protocol employs a users' scheduling procedure that attempts to fully utilize the available time-frequency blocks. Simulation results indicate that employing transmission power control along with appropriate channel assignment and users' scheduling in CRNs can significantly improve the spectrum utilization and the overall network performance.

show abstract