000 02349cam a2200337 a 4500
003 EG-GiCUC
005 20250223031833.0
008 171029s2017 ua d f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aM.Sc
099 _aCai01.13.08.M.Sc.2017.Em.E
100 0 _aEmad Badr Eldeen Abdelaziz Helal
245 1 0 _aEnergy-efficient spectrum aware clustering and multi-hop routing for cognitive radio sensor networks /
_cEmad Badr Eldeen Abdelaziz Helal ; Supervised Yasmine Aly Hassan Fahmy , Ahmed Khattab Fathi Khattab
246 1 5 _aتجميع و توجيه موفر للطاقه و مدرك للطيف فى شبكات مجسات الراديو الادراكى
260 _aCairo :
_bEmad Badr Eldeen Abdelaziz Helal ,
_c2017
300 _a83 P. :
_bcharts ;
_c30cm
502 _aThesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Electronics and Communication
520 _aIn this thesis, we propose an energy-efficient cluster head selection (ECHS) approach for cognitive radio sensor networks (CRSNs). ECHS achieves energy-efficient clustering while taking into account the dynamic spectrum access nature of CRSN. ECHS is a distributed algorithm in which serving as a cluster head depends on two factors: the channel availability in the node{u2019}s vicinity and the node{u2019}s energy. To tackle the hot spot problem caused by the high traffic near the sink, ECHS forms many small clusters near the sink to share the forwarding load of the rest of the network. Dynamic Channel Assignment (DCA) at the cluster heads is used to decrease the co-channel interference. We additionally propose a simple energy-efficient multi-hop routing protocol (ER) to evaluate the network performance from end-to-end. Simulation results show that our approaches achieve a remarkable increase in throughput while extending the network lifetime with an energy efficient manner
530 _aIssued also as CD
653 4 _aClustering
653 4 _aCognitive radio sensor networks
653 4 _aMulti-hop routing
700 0 _aAhmed Khattab Fathi Khattab ,
_eSupervisor
700 0 _aYasmine Aly Hassan Fahmy ,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aNazla
_eRevisor
905 _aSamia
_eCataloger
942 _2ddc
_cTH
999 _c63192
_d63192