Selim Dilek | Gebze Institute Of Technology (original) (raw)
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National Institute of Technology, Calicut
Università degli Studi di Bergamo (University of Bergamo)
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Papers by Selim Dilek
performansi GoldveHadamard gibi pratik yaymadizileri i,in bulunarak rastgele dizilerin performans... more performansi GoldveHadamard gibi pratik yaymadizileri i,in bulunarak rastgele dizilerin performansiyla kar*ila*tirilaca k Inthis paper, weanalyze thebiterror rateperformance of verastgele dizivarsayiminin ,oklu i,leme kazancli KBCE multi-processing gain(MPG)codedivision multiple access i,in ger,ekci olupolmadigi ara*tirilacaktir . Basitlik a,isindan (CDMA)fordeterministic spreading sequences overan ikihizli sistem incelenecektir; fakat bulunan sonu,lar daha asynchronous additive whiteGaussian noisechannel. ,okhizli sistemler i,ingenelle,tirilebilir.
In this paper, we analyze the bit error rate performance of multi-processing gain (MPG) code divi... more In this paper, we analyze the bit error rate performance of multi-processing gain (MPG) code division multiple access (CDMA) for deterministic spreading sequences over an asynchronous additive white Gaussian noise channel. Performances of Gold, Hadamard sequences are compared to that of random sequences. Results show that random code assumption is not realistic for MPG-CDMA since its performance differs a lot from those of deterministic ones
In this work, bit error rate analysis of a dual rate multi processing gain quasi-synchronous (QS)... more In this work, bit error rate analysis of a dual rate multi processing gain quasi-synchronous (QS) CDMA system is performed on additive white Gaussian noise channel with matched filter and on Rayleigh fading channel with matched filter and maximum ratio combiner for deterministic and random codes. Numerical results show that the performances of deterministic Gold codes and random codes are very different for both channels. Furthermore, the performances of two rates are different for Gold codes unlike random codes. Therefore, random code assumption is not realistic for multi-processing gain QS-CDMA.
Digital Signal Processing, 2010
In this paper, we analyze the bit error rate performance of multi-processing gain quasi-synchrono... more In this paper, we analyze the bit error rate performance of multi-processing gain quasi-synchronous (QS) code division multiple access (CDMA). Analysis is carried out for deterministic spreading sequences over additive white Gaussian noise (AWGN) and frequency selective slowly Rayleigh fading channels. We also find the bit error rate performance of multi-processing gain QS-CDMA for random spreading sequences and compare to that of deterministic spreading sequences. Results show that deterministic Gold codes outperform random codes considerably and perform differently for different rates while random codes give almost the same performance for all rates.
Bu çalışmada çoklu işleme kazançlı yaklaşık eşzamanlı KBÇE sisteminin, beyaz Gauss gürültüsü ekle... more Bu çalışmada çoklu işleme kazançlı yaklaşık eşzamanlı KBÇE sisteminin, beyaz Gauss gürültüsü eklenen kanalda deterministik ve rastgele kodlar için bit hata olasılığı analizi iki hızlı durum için yapılmıştır ve performansları birbiriyle karşılaştırılmıştır. Nümerik ve simülasyon sonuçları, deterministik Gold dizileri için iki hızın performansının birbirinden ve rastgele dizilerin performansından farklı olduğunu göstermektedir. Dolayısıyla çoklu hızlı KBÇE için rastgele dizi varsayımı gerçekçi değildir.
performansi GoldveHadamard gibi pratik yaymadizileri i,in bulunarak rastgele dizilerin performans... more performansi GoldveHadamard gibi pratik yaymadizileri i,in bulunarak rastgele dizilerin performansiyla kar*ila*tirilaca k Inthis paper, weanalyze thebiterror rateperformance of verastgele dizivarsayiminin ,oklu i,leme kazancli KBCE multi-processing gain(MPG)codedivision multiple access i,in ger,ekci olupolmadigi ara*tirilacaktir . Basitlik a,isindan (CDMA)fordeterministic spreading sequences overan ikihizli sistem incelenecektir; fakat bulunan sonu,lar daha asynchronous additive whiteGaussian noisechannel. ,okhizli sistemler i,ingenelle,tirilebilir.
In this paper, we analyze the bit error rate performance of multi-processing gain (MPG) code divi... more In this paper, we analyze the bit error rate performance of multi-processing gain (MPG) code division multiple access (CDMA) for deterministic spreading sequences over an asynchronous additive white Gaussian noise channel. Performances of Gold, Hadamard sequences are compared to that of random sequences. Results show that random code assumption is not realistic for MPG-CDMA since its performance differs a lot from those of deterministic ones
In this work, bit error rate analysis of a dual rate multi processing gain quasi-synchronous (QS)... more In this work, bit error rate analysis of a dual rate multi processing gain quasi-synchronous (QS) CDMA system is performed on additive white Gaussian noise channel with matched filter and on Rayleigh fading channel with matched filter and maximum ratio combiner for deterministic and random codes. Numerical results show that the performances of deterministic Gold codes and random codes are very different for both channels. Furthermore, the performances of two rates are different for Gold codes unlike random codes. Therefore, random code assumption is not realistic for multi-processing gain QS-CDMA.
Digital Signal Processing, 2010
In this paper, we analyze the bit error rate performance of multi-processing gain quasi-synchrono... more In this paper, we analyze the bit error rate performance of multi-processing gain quasi-synchronous (QS) code division multiple access (CDMA). Analysis is carried out for deterministic spreading sequences over additive white Gaussian noise (AWGN) and frequency selective slowly Rayleigh fading channels. We also find the bit error rate performance of multi-processing gain QS-CDMA for random spreading sequences and compare to that of deterministic spreading sequences. Results show that deterministic Gold codes outperform random codes considerably and perform differently for different rates while random codes give almost the same performance for all rates.
Bu çalışmada çoklu işleme kazançlı yaklaşık eşzamanlı KBÇE sisteminin, beyaz Gauss gürültüsü ekle... more Bu çalışmada çoklu işleme kazançlı yaklaşık eşzamanlı KBÇE sisteminin, beyaz Gauss gürültüsü eklenen kanalda deterministik ve rastgele kodlar için bit hata olasılığı analizi iki hızlı durum için yapılmıştır ve performansları birbiriyle karşılaştırılmıştır. Nümerik ve simülasyon sonuçları, deterministik Gold dizileri için iki hızın performansının birbirinden ve rastgele dizilerin performansından farklı olduğunu göstermektedir. Dolayısıyla çoklu hızlı KBÇE için rastgele dizi varsayımı gerçekçi değildir.