http://iet.metastore.ingenta.com
1887

Effect of spectrum sensing errors on the performance of bit loading for orthogonal-frequency-division-multiplexing-based cognitive radio systems

Effect of spectrum sensing errors on the performance of bit loading for orthogonal-frequency-division-multiplexing-based cognitive radio systems

For access to this article, please select a purchase option:

Buy article PDF
$19.95
(plus tax if applicable)
Buy Knowledge Pack
10 articles for $120.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Name:*
Email:*
Your details
Name:*
Email:*
Department:*
Why are you recommending this title?
Select reason:
 
 
 
 
 
IET Communications — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

The effect of spectrum sensing errors on the performance of bit loading algorithms in cognitive radio systems based on orthogonal frequency division multiplexing is studied in terms of throughput and average bit error rate. Different spectrum sensing parameters and data transmission parameters are examined to evaluate the performance degradation. Numerical results show that the sensing errors cause significant performance degradation and that, when the signal-to-noise ratio is high, the inter-carrier interferences caused by carrier frequency offset are dominant in the performance degradation.

References

    1. 1)
      • 1. Federal Communications Commission: ‘Notice of proposed rulemaking, in the matter of unlicensed operation in the TV broadcast bands (ET Docket No. 04-186) and additional spectrum for unlicensed devices below 900 MHz and in the 3 GHz band (ET Docket No. 02-380)’, 2004.
    2. 2)
    3. 3)
      • 3. Sohail, A., Jafri, M.N.: ‘Adaptive OFDM over frequency selective and fast fading channel using Blockwise bit loading algorithm’. IFIP Int. Conf. Wireless and Optical Communications Networks, 2007 (WOCN ’07), 2007, pp. 14.
    4. 4)
    5. 5)
      • 5. Zhang, H., Fu, J., Song, J.: ‘A Hughes-Hartogs algorithm based bit loading algorithm for OFDM systems’. 2010 IEEE Int. Conf. Communications (ICC), 2010, 23–27, pp. 15.
    6. 6)
    7. 7)
    8. 8)
    9. 9)
    10. 10)
    11. 11)
    12. 12)
    13. 13)
    14. 14)
      • 14. Budiarjo, I., Nikookar, H., Ligthart, L.P.: ‘Combined spectrum pooling and adaptive bit loading for cognitive radio OFDM based system’. Proc. 13th IEEE Symp. Communications and Vehicular Technology in the Benelux (SCVT), 2006, pp. 7376.
    15. 15)
      • 15. Tang, J., Rahulamathavan, Y., Lambotharan, S.: ‘Optimal adaptive bit loading and subcarrier allocation techniques for OFDM based cognitive radio systems’. 2010 12th IEEE Int. Conf. Communication Technology (ICCT), 2010, pp. 454457.
    16. 16)
    17. 17)
    18. 18)
      • 18. Fischer, R.F.H., Huber, J.B.: ‘A new loading algorithm for discrete multitone transmission’. Global Telecommunications Conference, 1996. Communications: The Key to Global Prosperity, 1996, 1, pp. 724728.
    19. 19)
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-com.2014.0095
Loading

Related content

content/journals/10.1049/iet-com.2014.0095
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
This is a required field
Please enter a valid email address