Mawarto, A. and Sarijari, M. Adib and Fisal, N. and Syed Yusof, Sharifah K. and A. Rashid, Rozeha (2009) An initial energy detection utilizing software defined radio. In: The 2009 International Conference on Advanced Science and Information System (ICACSIS 2009) , 2009, University of Indonesia, Jakarta, Indonesia .
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One scarcity of implementing spectrum sensing is the hidden terminal problem, which occurs when the cognitive radio is shadowed. Its severe fading due to high losses while primary users are visible. In order to deals with this problem in cognitive radio network, the multiple cognitive users should cooperate to conduct spectrum sensing. We investigated a single node spectrum sensing using power spectral density utilizing USRP and GNU Radio act as Software Defined Radio (SDR). In this paper, a periodic signal x(t) is used with two USRP RFX2400 front ends. The signal modulated by Gaussian Minimum Shift Keying (GMSK) modulation is then transmitted through wireless channel. The center frequency of the experimental setup is 2.5GHz in order to minimize any interference of ISM bands. At the receiver, x(t) would be sensed by energy detection algorithm. The result showed that spectrum sensing has been successfully detected. The power spectral density of the received signal is sensed successfully using USRP and GNU Radio.
|Item Type:||Conference or Workshop Item (Paper)|
|Uncontrolled Keywords:||spectral density, GNU radio, energy detection, spectrum sensing, cooperative networks|
|Subjects:||T Technology > TK Electrical engineering. Electronics Nuclear engineering|
|Deposited By:||Liza Porijo|
|Deposited On:||13 Sep 2011 04:57|
|Last Modified:||13 Sep 2011 04:57|
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