Distributed Energy-Spectrum Trading in Green Cognitive Radio Cellular Networks
Mohammad Yousefvand,Tao Han,Nirwan Ansari,Abdallah Khreishah +3 more
- Vol. 1, Iss: 3, pp 253-263
TLDR
This paper proposes a new energy spectrum trading model to enhance the energy as well as spectrum efficiency of cellular networks and designs an efficient distributed auction model including green energy aware bidding (GEAB) and adaptive bid selection (ABS) algorithms, to achieve a good approximation of the optimal solution in less time.Abstract:
Reducing the power consumption of base stations is crucial to enhancing the energy efficiency of cellular networks. As the number of mobile users increases exponentially, enhancing the spectrum efficiency is also critical in order to accommodate more users. In this paper, by exploiting the cooperation between secondary base stations (SBSs) and primary base stations (PBSs), we propose a new energy spectrum trading model to enhance the energy as well as spectrum efficiency of cellular networks. In our scheme, by leveraging cognitive radio, PBSs share some portion of their licensed spectrum with SBSs, and SBSs, in exchange, provide data service to the primary users under their coverage. We first prove that the power consumption minimization problem is NP-hard. Then, to decrease the computational complexity, we design an efficient distributed auction model including green energy aware bidding (GEAB) and adaptive bid selection (ABS) algorithms, to achieve a good approximation of the optimal solution in less time. Our simulation results show that the cooperation between PBS and SBSs via ABS and GEAB algorithms can significantly improve the energy and spectral efficiency of cellular networks by nearly doubling the number of offloaded users and reducing the PBS power consumption by up to 40% as compared to existing approaches. Furthermore, green energy utilization among SBSs is increased by nearly 25%.read more
Citations
More filters
Journal ArticleDOI
Reinforcement Learning for Self Organization and Power Control of Two-Tier Heterogeneous Networks
TL;DR: A Q-learning-based distributed power allocation algorithm (Q-DPA) is introduced as a self-organizing mechanism that enables the ongoing transmit power adaptation as new small cells are added to the network.
Journal ArticleDOI
Wideband Collaborative Spectrum Sensing Using Massive MIMO Decision Fusion
TL;DR: In this paper, the authors apply the general framework of decision fusion to wideband collaborative spectrum sensing based on Orthogonal Frequency Division Multiplexing (OFDM) reporting, in order to tackle major challenges of spectrum exploration and allocation in CR networks.
Posted Content
Reinforcement Learning for Self-Organization and Power Control of Two-Tier Heterogeneous Networks
TL;DR: In this article, a distributed framework based on multi-agent Markov decision process is proposed that models the power optimization problem in the network and a systematic approach for designing a reward function based on the optimization problem is presented.
Posted Content
Wideband Collaborative Spectrum Sensing using Massive MIMO Decision Fusion
TL;DR: The effectiveness of the proposed TR-based rules in combating inter-symbol and inter-carrier interference over conventional (non-TR) counterparts is examined, as a function of the Signal-to-Interference-plus-Noise Ratio (SINR).
Journal ArticleDOI
Energy-Efficient Virtual Radio Access Networks for Multi-Operators Cooperative Cellular Networks
TL;DR: This work proposes the sleep-mode with efficient beamformers and spectrum-sharing (SEBS) strategy, which minimizes BS power consumption of cooperative MNOs and explores the potentials of virtualized radio access and core networks to enable spectrum sharing among mobile network operators (MNOs) by harnessing inter-band non-contiguous carrier aggregation.
References
More filters
Book
Computers and Intractability: A Guide to the Theory of NP-Completeness
TL;DR: The second edition of a quarterly column as discussed by the authors provides a continuing update to the list of problems (NP-complete and harder) presented by M. R. Garey and myself in our book "Computers and Intractability: A Guide to the Theory of NP-Completeness,” W. H. Freeman & Co., San Francisco, 1979.
Journal ArticleDOI
Green Cellular Networks: A Survey, Some Research Issues and Challenges
TL;DR: A brief survey of methods to improve the power efficiency of cellular networks, explore some research issues and challenges and suggest some techniques to enable an energy efficient or "green" cellular network.
Journal ArticleDOI
Coordinated multipoint: Concepts, performance, and field trial results
Ralf Irmer,Heinz Droste,Patrick Marsch,Michael Grieger,Gerhard Fettweis,Stefan Brueck,Hans-Peter Mayer,Lars Thiele,Volker Jungnickel +8 more
TL;DR: The principal feasibility of COMP is shown in two field testbeds with multiple sites and different backhaul solutions between the sites, and significant gains can be shown for both the uplink and downlink.
Proceedings Article
Power consumption modeling of different base station types in heterogeneous cellular networks
TL;DR: Such power models for macro and micro base stations relying on data sheets of several GSM and UMTS base stations with focus on component level, e.g., power amplifier and cooling equipment are developed.