[en] Exploring innovative cellular architectures to achieve enhanced system capacity and good coverage has become a critical issue towards realizing the fifth generation (5G) of
wireless communications. In this context, this paper proposes a novel concept of an intelligent Amplify and Forward (AF) 5G repeater for enabling the densification of future cellular
networks. The proposed repeater features a Spectrum Sensing (SS) intelligence capability and utilizes such intelligence in a complementary fashion in comparison to its existing counterpart
(e.g., Cognitive Radio) by detecting the active channels within the assigned spectrum. This intelligence allows the proposed repeater to carry out selective amplification of the active channels in contrast to the full amplification in conventional AF repeaters. Furthermore, the performance of a Frequency Division Multiple Access (FDMA) based two hop cellular network utilizing the proposed repeater is evaluated in terms of the system throughput. Simulation results demonstrate up to 13 % increase when compared with the conventional repeaters. Moreover, the effect of SS errors on the system capacity is analyzed.
Disciplines :
Ingénierie électrique & électronique
Auteur, co-auteur :
SHARMA, Shree Krishna ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Patwary, Mohammad
CHATZINOTAS, Symeon ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
OTTERSTEN, Björn ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Abdel-Maguid, Mohamed
Co-auteurs externes :
yes
Langue du document :
Anglais
Titre :
Repeater for 5G Wireless: A Complementary Contender for Spectrum Sensing Intelligence
Date de publication/diffusion :
juin 2015
Nom de la manifestation :
International Conference on Communications (ICC)
Organisateur de la manifestation :
IEEE
Lieu de la manifestation :
London, Royaume-Uni
Date de la manifestation :
8-12 June 2015
Manifestation à portée :
International
Titre de l'ouvrage principal :
Proceedings of International Conference on Communications 2015
C.-X. Wang, and et al., "Cellular architecture and key technologies for 5G wireless communication networks," IEEE Commun. Mag., vol. 52, no. 2, pp. 122-130, Feb. 2014.
M. Patwary, P. Rapajic, and I. Oppermann, "Capacity and coverage increase with repeaters in UMTS urban cellular mobile communication environment," IEEE Trans. Commun., vol. 53, no. 10, Oct. 2005.
E. Drucker, "Development and application of a cellular repeater," in IEEE Veh. Technol. Conf., June 1988, pp. 321-325.
Fijitsu, "Enhancing RF capacity via over-the-air repeaters," whitepaper, Available Online: http://www.fujitsu.com/downloads/TEL/fnc/whitepapers.
P. Lahdekorpi, and et al., "Implementation aspects of RF-repeaters in cellular networks," in IEEE PIMRC, Sept 2010, pp. 2511-2516.
D. Li, "Cognitive relay networks: Opportunistic or uncoded decode-and-forward relaying?" IEEE Trans. Veh. Technol., vol. 63, no. 3, pp. 1486-1491, Mar. 2014.
J. Liu, R. Love, and A. Nimbalker, "Recent results on relaying for LTE-advanced," in IEEE VTC-Fall, Sept. 2009, pp. 1-3.
S. Sengupta and K. Subbalakshmi, "Open research issues in multi-hop cognitive radio networks," IEEE Commun. Mag., vol. 51, no. 4, pp. 168-176, Apr. 2013.
Y. Xue, "Amplify-and-forward repeater enhanced random access in single-cell wireless communications," in IEEE PIMRC, Sept. 2008.
H. Kha, and et al., "Joint optimization of source power allocation and cooperative beamforming for SC-FDMA multi-user multi-relay networks," IEEE Trans. Commun., vol. 61, no. 6, June 2013.
S. K. Sharma, S. Chatzinotas, and B. Ottersten, "Spectrum sensing in dual polarized fading channels for cognitive SatComs," in IEEE Globecom Conf., Dec. 2012, pp. 3419-3424.
A. Goldsmith, S. Jafar, I. Maric, and S. Srinivasa, "Breaking spectrum gridlock with cognitive radios: An information theoretic perspective," Proc. IEEE, vol. 97, no. 5, pp. 894-914, May 2009.
S. K. Sharma, S. Chatzinotas, and B. Ottersten, "SNR estimation for multi-dimensional cognitive receiver under correlated channel/noise," IEEE Trans. Wireless Commun., vol. 12, no. 12, Dec. 2013.
S. K. Sharma, S. Chatzinotas, and B. Ottersten, "Compressive sparsity order estimation for wideband cognitive radio receiver," IEEE Trans. Signal Process., vol. 62, no. 19, Oct. 2014.
M. Xiaomao and Q. Peiliang, "Cognitive relay," in Future Generation Commun. and Networking, vol. 2, Dec 2007, pp. 264-269.
J. Lee, H. Wang, J. Andrews, and D. Hong, "Outage probability of cognitive relay networks with interference constraints," IEEE trans. Wireless Commun., vol. 10, no. 2, pp. 390-395, Feb. 2011.
D. Wieruch, and et al., "Cognitive repeaters for fexible mobile data traffc offoading," in Int. Conf. CROWNCOM, July 2013, pp. 214-219.
A. Kaushik, M. Raza, and F. Jondral, "On the deployment of cognitive relay as underlay systems," in Int. Conf. CROWNCOM, June 2014.
H. Cheng and Y.-D. Yao, "Cognitive-relay-based intercell interference cancellation in cellular systems," IEEE Trans. Veh. Technol., vol. 59, no. 4, pp. 1901-1909, May 2010.
W. C. Y. Lee and D. Lee, "The impact of repeaters on CDMA system performance," in IEEE VTC-Spring, vol. 3, 2000, pp. 1763-1767.
S. K. Sharma, S. Chatzinotas, and B. Ottersten, "Eigenvalue-based sensing and SNR estimation for cognitive radio in presence of noise correlation," IEEE Trans. Veh. Technol., vol. 62, no. 8, Oct 2013.
K. Patil, R. Prasad, and K. Skouby, "A survey of worldwide spectrum occupancy measurement campaigns for cognitive radio," in Int. Conf. Devices and Commun., Feb. 2011, pp. 1-5.
X. Song, and et al., "A statistical geometric approach for capacity analysis in two-hop relay communications," in IEEE Globecom, pp. 4823-4829, Dec. 2013
S. K. Sharma, S. Chatzinotas, and B. Ottersten, "Exploiting polarization for spectrum sensing in cognitive SatComs," in 7th Int. Conf. CROWN-COM, June 2012, pp. 36-41.
Y.-C. Liang, Y. Zeng, E. Peh, and A. T. Hoang, "Sensing-throughput tradeoff for cognitive radio networks," IEEE Trans. Wireless Commun., vol. 7, no. 4, pp. 1326-1337, April 2008.