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http://dx.doi.org/10.1109/JCN.2013.000015

Spectrum Leasing and Cooperative Resource Allocation in Cognitive OFDMA Networks  

Tao, Meixia (Department of Electronic Engineering at Shanghai Jiao Tong University)
Liu, Yuan (Department of Electronic Engineering at Shanghai Jiao Tong University)
Publication Information
Journal of Communications and Networks / v.15, no.1, 2013 , pp. 102-110 More about this Journal
Abstract
This paper considers a cooperative orthogonal frequency division multiple access (OFDMA)-based cognitive radio network where the primary system leases some of its subchannels to the secondary system for a fraction of time in exchange for the secondary users (SUs) assisting the transmission of primary users (PUs) as relays. Our aim is to determine the cooperation strategies among the primary and secondary systems so as to maximize the sum-rate of SUs while maintaining quality-of-service (QoS) requirements of PUs. We formulate a joint optimization problem of PU transmission mode selection, SU (or relay) selection, subcarrier assignment, power control, and time allocation. By applying dual method, this mixed integer programming problem is decomposed into parallel per-subcarrier subproblems, with each determining the cooperation strategy between one PU and one SU. We show that, on each leased subcarrier, the optimal strategy is to let a SU exclusively act as a relay or transmit for itself. This result is fundamentally different from the conventional spectrum leasing in single-channel systems where a SU must transmit a fraction of time for itself if it helps the PU's transmission. We then propose a subgradient-based algorithm to find the asymptotically optimal solution to the primal problem in polynomial time. Simulation results demonstrate that the proposed algorithm can significantly enhance the network performance.
Keywords
Cognitive radio networks; cooperative communications; orthogonal frequency division multiple access (OFDMA); resource allocation; two-way relaying;
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1 Y. Yi, J. Zhang, Q. Zhang, T. Jiang, and J. Zhang, "Cooperative communication-aware spectrum leasing in cognitive radio networks," in Proc. IEEE DySPAN, Apr. 2010.
2 W. Yu and R. Lui, "Dual methods for nonconvex spectrum optimization of multicarrier systems," IEEE Trans. Commun., vol. 54, no. 7, pp. 1310-1322, July. 2006.   DOI   ScienceOn
3 T. C.-Y. Ng andW. Yu, "Joint optimization of relay strategies and resource allocations in cooperative cellular networks," IEEE J. Sel. Areas Commun., vol. 25, no. 2, pp. 328-339, Feb. 2007.   DOI   ScienceOn
4 S. Boyd and L. Vandenberghe, Convex Optimization. U.K.: Cambridge Univ. Press, 2004.
5 R. G. Bland, D. Goldfarb, and M. J. Todd, "The ellipsoid method: A survey," Oper. Res., vol. 29, no. 6, pp. 1039-1091, Nov.-Dec., 1981.   DOI   ScienceOn
6 Y. Liu, M. Tao, B. Li, and H. Shen, "Optimization framework and graph-based approach for relay-assisted bidirectional OFDMA cellular networks," IEEE Trans. Wireless Commun., vol. 9, no. 11, pp. 3490-3500, Nov. 2010.   DOI   ScienceOn
7 K. Jitvanichphaibool, R. Zhang, and Y. C. Liang, "Optimal resource allocation for two-way relay-assisted OFDMA," IEEE Trans. Veh. Technol., vol. 58, no. 7, pp. 3311-3321, Sept. 2009.   DOI   ScienceOn
8 Y. Liu and M. Tao, "Optimal channel and relay assignment in OFDMbased multi-relay multi-pair two-way communication networks," IEEE Trans. Commun., vol. 60, no. 2, pp. 317-321, Feb. 2012.   DOI   ScienceOn
9 H. Zhang, Y. Liu, and M. Tao, "Resource allocation with subcarrier pairing in OFDMA two-way relay networks," IEEE Wireless Commun. Lett., vol. 1, no. 2, pp. 61-64, Apr. 2012.   DOI   ScienceOn
10 Y. Liu, J. Mo, and M. Tao, "QoS-aware policies for OFDM bidirectional transmission with decode-and-forward relaying," in Proc. IEEE GLOBECOM, 2012.
11 C. Lin, Y. Liu, and M. Tao, "Cross-layer optimization of two-way relaying for statistical QoS guarantees," IEEE J. Sel. Areas Commun., to appear.
12 L.-L. Xie, "Network coding and random binning for multi-user channels," in Proc. IEEE CWIT, 2007.
13 T. J. Oechtering, C. Schnurr, I. Bjelakovic, and H. Boche, "Broadcast capacity region of two-phase bidirectional relaying," IEEE Trans. Inf. Theory, vol. 54, no. 1, pp. 454-458, Jan. 2008.   DOI   ScienceOn
14 D. N. C. Tse and S. V. Hanly, "Multiaccess fading channels-Part I: Polymatroid structure, optimal resource allocation and throughput capacities," IEEE Trans. Inf. Theory, vol. 44, no. 7, pp. 2796-2815, Nov. 1998.   DOI   ScienceOn
15 V. Erceg, L. Greenstein, S. Tjandra, S. Parkoff, A. Gupta, B. Kulic, A. Julius, and R. Jastrzab, "An empirically based path loss model for wireless channels in suburban environments," IEEE J. Sel. Areas Commun., vol. 17, no. 7, pp. 1205-1211, July. 1999.   DOI   ScienceOn
16 J. Zhang and Q. Zhang, "Stackelberg game for utility-based cooperative cognitive radio networks," in Proc. ACM MobiHoc, 2009.
17 T. A. Weiss and F. K. Jondral, "Spectrum pooling: An innovative strategy for the enhancement of spectrum efficiency," IEEE Commun. Mag., vol. 42, no. 3, pp. S8-S14, Mar. 2004.
18 P. Wang, M. Zhao, L. Xiao, S. Zhou, and J. Wang, "Power allocation in OFDM-based cognitive radio systems," in Proc. IEEE GLOBECOM, 2007, pp. 4061-4065.
19 G. Bansal, M. J. Hossain, and V. K. Bhargava, "Optimal and suboptimal power allocation schemes for OFDM-based cognitive radio systems," IEEE Trans. Wireless Commun., vol. 7, no. 11, pp. 4710-4718, Nov. 2008.   DOI   ScienceOn
20 Y. Ma, D. I. Kim, and Z. Wu, "Optimization of OFDMA-based cellular cognitive radio networks," IEEE Trans. Commun., vol. 58, no. 8, pp. 2265-2271, Aug. 2010.   DOI   ScienceOn
21 B. Rankov and A. Wittneben, "Spectral efficient protocols for half-duplex fading relay channels," IEEE J. Sel. Areas Commun., vol. 25, no. 2, pp. 379-389, Feb. 2007.   DOI   ScienceOn
22 P. Popovski and H. Yomo, "Physical network coding in two-way wireless relay channels," in Proc. IEEE ICC, 2007, pp. 707-712.
23 S. J. Kim, P. Mitran, and V. Tarokh, "Performance bounds for bidirectional coded cooperation protocols," IEEE Trans. Inf. Theory, vol. 54, no. 11, pp. 5235-5241, Aug. 2008.   DOI   ScienceOn
24 C. Sun and K. B. Letaief, "User cooperation in heterogeneous cognitive radio networks with interference reduction," in Proc. IEEE ICC, 2008.
25 C. Stevenson, G. Chouinard, Z. Lei,W. Hu, S. Shellhammer, and W. Caldwell, "IEEE 802.22: The first cognitive radio wireless regional area network standard," IEEE Commun. Mag., vol. 47, no. 1, pp. 130-138, Jan. 2009.   DOI   ScienceOn
26 V. Brik, E. Rozner, S. Banerjee, and P. Bahl, "DSAP: A protocol for coordinated spectrum access," in Proc. IEEE DySPAN, 2005, pp. 611-614.
27 J. Jia, J. Zhang, and Q. Zhang, "Cooperative relay for cognitive radio networks," in Proc. IEEE INFOCOM, 2009, pp. 2304-2312.
28 L. B. Le and E. Hossain, "Resource allocation for spectrum underlay in cognitive radio networks," IEEE Trans. Wireless Commun., vol. 7, no. 12, pp. 5306-5315, Dec. 2008.   DOI   ScienceOn
29 A. T. Hoang, Y.-C. Liang, and M. H. Islam, "Power control and channel allocation in cognitive radio networks with primary users' cooperation," IEEE Trans. Mobile Comput., vol. 9, no. 3, pp. 348-360, Mar. 2010.   DOI   ScienceOn
30 G.-D. Zhao, C.-Y. Yang, G. Y. Li, D.-D. Li, and A. C. K. Soong, "Power and channel allocation for cooperative relay in cognitive radio networks," IEEE J. Sel. Topics Signal Proc., vol. 5, no. 1, pp. 151-159, Feb. 2011.   DOI   ScienceOn
31 X. Kang, H. K. Garg, Y. C. Liang, and R. Zhang, "Optimal power allocation for OFDM-based cognitive radios with new primary transmission protection criteria," IEEE Trans. Wireless Commun., vol. 9, no. 6, pp. 2066-2075, June. 2010.   DOI   ScienceOn
32 S. Haykin, "Cognitive radios: Brain-empowered wireless communications," IEEE J. Sel. Areas Commun., vol. 23, no. 2, pp. 201-220, 2005.   DOI   ScienceOn
33 I. F. Akyildiz, W.-Y. Lee, M. C. Vuran, and S. Mohanty, "Next generation/ dynamic spectrum access/cognitive radio wireless networks: A survey," Comput. Netw., vol. 50, no. 13, pp. 2127-2159, Sep. 2006.   DOI   ScienceOn
34 O. Simeone, I. Stanojev, S. Savazzi, Y. Bar-Ness, U. Spagnolini, and R. Pickholtz, "Spectrum leasing to cooperating secondary ad hoc networks," IEEE J. Sel. Areas Commun., vol. 26, no. 1, pp. 203-213, Jan. 2008.   DOI   ScienceOn