Subcarriers assignment scheme for multiple secondary users in OFDMA‐based IEEE 802.22 WRAN: A game theoretic approach

Gupta, Nitin; Dhurandher, Sanjay Kumar; Woungang, Isaac

doi:10.1002/ett.3502

Cited by 4 publications

(2 citation statements)

References 44 publications

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“…Gupta et al formulated the problem of subcarriers assignment among SUs in IEEE WRAN as an oligopoly market competition. Using a noncooperative Cournot game, various SUs compete for the number of subcarriers depending on the achievable data rate from current channel conditions.…”

Section: Channel Assignment In Literaturementioning

confidence: 99%

Cross‐layer perspective for channel assignment in cognitive radio networks: A survey

Gupta

Dhurandher

2019

Int J Communication

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Summary With the advent of various emerging wireless products, the usage of limited spectrum has grown exponentially in the recent years. In the next few years, that mobile data traffic globally is expected to grow up to 50 EB/month, which is nearly a five times increase over year 2018. Therefore, it will become extremely difficult to satisfy the ever increasing demand through the current fixed spectrum assignment policy in which spectrum band is exclusively used for the particular applications, and it has also led to underutilization of a significant portion of the spectrum (like TV bands). Cognitive radio networks has emerged as a possible solution for the problem which makes dynamic spectrum access possible for unlicensed user when licensed user is not active. Among various operations of cognitive radio, channel assignment to the unlicensed user is very important. Further, wireless regional area network is one of the most important application of cognitive radio, which provides wireless broadband to the rural area using vacant TV channels. This paper discusses channel assignment techniques considering various functionalities for cognitive radio networks in respect of wireless regional area network in the existing literature. Initially, a comprehensive introduction to both cognitive radio networks and wireless regional area networks is provided, and in the end, the paper summarizes the various issues and research challenges in the channel assignment for wireless regional area networks.

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Section: Channel Assignment In Literaturementioning

confidence: 99%

Cross‐layer perspective for channel assignment in cognitive radio networks: A survey

Gupta

Dhurandher

2019

Int J Communication

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“…Many works have focused on the application of game theory in cognitive radio technology. Gupta et al [13] designed a suboptimal fairness power allocation algorithm based on Cournot game to maximize user or network throughput. e disadvantage of this method is that interference between subcarriers in OFDMA and cognitive radio-based IEEE 802.22 wireless regional area networks is not considered for subcarrier assignment.…”

Section: Introductionmentioning

confidence: 99%

Spectrum Sharing with Dynamic Cournot Game in Vehicle-Enabled Cognitive Small-Cell Networks

Jiang

2019

Journal of Computer Networks and Communications

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Cognitive radio technology can effectively improve spectrum efficiency in wireless networks and is also applicable to vehicle smallcell networks. In this paper, we consider the problem of spectrum sharing among a vehicle primary user (V-PU) and multiple vehicle secondary users (V-SUs). is problem is modeled as a competition market, and the solution for V-SUs is designed using a non-cooperative game. A utility function that measures the profit of the V-PU considering quality of service (QoS) is proposed, aiming at maximizing the profit of the V-PU. Nash equilibrium is obtained as the best solution in our game. en, the realistic vehicle-enabled cognitive small-cell network is considered in building the dynamic spectrum allocation problem. e V-SUs adjust their current strategies gradually and iteratively based on the observations on the strategies of the previous moment. is adjustment parameter is controlled by the frequency of adjustment. e stability analysis of the dynamic game is given out subsequently for dynamic spectrum allocation. e numerical results show the effectiveness of the proposed dynamic spectrum scheme for vehicle-enabled cognitive small-cell networks and Nash equilibrium point's existence.

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Game theoretic application for energy efficient mobility handling in wireless sensor network

Maheshwari

Sharma

Verma

2020

Trans Emerging Tel Tech

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Wireless sensor network (WSN) are used to sense, process, and send important information relating to surrounding environment. In these network, one of the important issue is timely delivery of packets to destination and thus avoiding packet loss when sensor nodes are mobile. Most of the current research does not allow handling of packets of mobile sensor nodes till next Time‐division multiple access (TDMA) schedule. In this work, we investigate the problem of allocating reserved slots to mobile nodes which come in vicinity of new cluster head in currenTDMAschedule only. We model allocation of reserved slots to mobile nodes as cooperative game. We then propose cooperative coordination scheme to allow cooperation among mobile sensor nodes for accessing of reserved slots with the objective of avoiding unnecessary delay and packet loss in the network. We consider solution for both the cases when reserved slot is limited to 1 and when reserved slots are more than 1. We then propose evolutionary game theory‐based slot allocation scheme for calculation of probability by solving nash equilibrium point. This probability is used by mobile nodes to send data packets to new cluster head. Our scheme avoids end to end delay of packets and network congestion due to buffer overflows. We then present extensive simulation results comparing our scheme with existing techniques. The results show higher performance in terms of average residual energy, network lifetime and packet delivery ratio etc.

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Subcarriers assignment scheme for multiple secondary users in OFDMA‐based IEEE 802.22 WRAN: A game theoretic approach

Cited by 4 publications

References 44 publications

Cross‐layer perspective for channel assignment in cognitive radio networks: A survey

Cross‐layer perspective for channel assignment in cognitive radio networks: A survey

Spectrum Sharing with Dynamic Cournot Game in Vehicle-Enabled Cognitive Small-Cell Networks

Game theoretic application for energy efficient mobility handling in wireless sensor network

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