EE360 Project Proposal Cooperative Spect

8/18/2019 EE360 Project Proposal Cooperative Spect

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Research Proposal

Cooperative Spectrum Sensing for Cognitive Radio in Flat-Fading Environment

Author:

Supervisor: M. Alamgir Hossain, ecturer, !ept. of CSE, "slamic #niversit$, %ushtia.

& "ntroduction

'he spectrum, (hich is used for radio communications, is natural resources )&*. "n the #nitedStates, the Federal Communication Commission +FCC governs the usage of the spectrum.Recentl$, (ith the increase in the adoption of ne( electric devices, the unlicensed spectrum ecomes increasingl$ scarce. Some recent government reports sho( that large part of licensed ands are unused in the sense of time and space: some freuenc$ ands are not

occupied $ the licensed users in a particular time or at a particular location )/*. 'hese resultsdirect us to a ne( area of communications, in (hich the unlicensed users +secondar$ usersma$ occup$ the free and (hen the licensed users +primar$ users do not use the spectrum.Such a s$stem is called cognitive radio s$stem. "n cognitive radio s$stem, one of the issues isho( the secondar$ users detect (eather the primar$ users are using the spectrum or not.'herefore, spectrum sensing ecomes critical in cognitive radio s$stem.

As discussed in )0*, there have een man$ discussions and proposed solutions for spectrum sensing. Ho(ever, most solutions are still focusing on the single secondar$ user detection, (hich means each secondar$ user (or1s independentl$. As presented in )0*, one of the challenges in spectrum sensing is the hard(are reuirement since spectrum sensing needshigh sampling rate, high resolution Analog-to-!igital Converter +A2! Converter, and high- performance signal processors. 'his challenge ecomes more e3plicit in the cognitive radioapplications of sensor net(or1 and ad hoc net(or1. An alternative solution is cooperative

scheme. "n cooperative scheme, t(o or more secondar$ users sense the channel coordinatel$and share the information et(een each other. As sho(n in )4* and )5*, (ith the cooperativescheme, the proailit$ of false alarm can e reduced significantl$.

/ 6ro7ect 6lan

"n this pro7ect, (e propose to compare the performances of three cooperative spectrumsensing protocols presented in )8*, )9*, and )* in a flat fading and multipath channel (ithAdditive ;hite


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transmission signals )5, 9*. 'he spectrum detector of each single secondar$ user (ill edecided after revie(ing more previous (or1s.

3 Schedule• ;ee1 & +Fe. 0 th @ Fe. 5th: Read the related papers and decide the spectrum sensing

for single secondar$ user.

• ;ee1 / +Fe. 8th @ Fe. &/th: >uild the s$stem model and revise the pro7ect proposal.

• ;ee1 0 +Fe. &0th @ Fe &th: Reproduce the simulation results given in the selected papers and perform the simulation in uilt s$stem model.

• ;ee1 4 +Fe. /Bth @ Fe. /8th: ;rite the progress report and anal$se and verif$ thesimulation results.

• ;ee1 5 +Fe. /9th @ Mar. 4th: Anal$se and verif$ the simulation results.

• ;ee1 8 +Mar. 5th @ Mar. &&th: Finish the first draft of final report, perform supplementsimulations, and prepare the presentation poster.

• ;ee1 9 +Mar. &/th @ Mar. &8th: Finish the final pro7ect report.'he estimated (or1ing hours are /5 hours per (ee1. "f time permits, (e (ill anal$se the

performance of these protocols (ith random locations of the secondar$ users.

References

[1] S. Ha$1in, Cognitive radio: rain-empo(ered (ireless communications,D Selected Areasin Communications, "EEE ournal on, vol. /0, no. /, pp. /B&@//B, /BB5.

[2] M. rodersen, Cooperative sensing among cognitive radios,D in


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Communications, /BB8. "CCJB8. "EEE "nternational Conference on, vol. 4, pp. &85@&880,"eee, /BB8

Documents

EE360 Project Proposal Cooperative Spect