Pub Date : 2013-03-28DOI: 10.1109/NCC.2013.6487969
S. Venkatrami Reddy, Aditya Singh, Yadu Nath K., M. Akhtar
The design of a microstrip based compact dual band Monopole Antenna for Wireless Local Area Network (WLAN) and WiMAX (Wi-Fi) applications is presented. The antenna consists of two symmetric twisted arms fed by a 50 Ω microstrip line. The basic design and the numerical simulation of the proposed antenna are carried out using a full wave electromagnetic simulator, the CST Microwave Studio. Various design parameters are optimized for a better performance, and a detailed parametric analysis is also carried out in order to study the effects of various parameters. The antenna is designed to operate at two resonating frequencies corresponding to the ISM bands of 2.4 GHz and 5.2 GHz, respectively. The antenna is fabricated after freezing its design with an optimized size of 28×23 mm2, and its return loss is measured with the help of a network analyser. The measured data match reasonably well with the simulated values. The proposed antenna is seen to have very low return loss (S11< −15 dB) at both the operating frequencies, and a good radiation characteristics.
{"title":"Design of a practical dual-band planar monopole antenna for WLAN and WiMAX applications","authors":"S. Venkatrami Reddy, Aditya Singh, Yadu Nath K., M. Akhtar","doi":"10.1109/NCC.2013.6487969","DOIUrl":"https://doi.org/10.1109/NCC.2013.6487969","url":null,"abstract":"The design of a microstrip based compact dual band Monopole Antenna for Wireless Local Area Network (WLAN) and WiMAX (Wi-Fi) applications is presented. The antenna consists of two symmetric twisted arms fed by a 50 Ω microstrip line. The basic design and the numerical simulation of the proposed antenna are carried out using a full wave electromagnetic simulator, the CST Microwave Studio. Various design parameters are optimized for a better performance, and a detailed parametric analysis is also carried out in order to study the effects of various parameters. The antenna is designed to operate at two resonating frequencies corresponding to the ISM bands of 2.4 GHz and 5.2 GHz, respectively. The antenna is fabricated after freezing its design with an optimized size of 28×23 mm2, and its return loss is measured with the help of a network analyser. The measured data match reasonably well with the simulated values. The proposed antenna is seen to have very low return loss (S11< −15 dB) at both the operating frequencies, and a good radiation characteristics.","PeriodicalId":202526,"journal":{"name":"2013 National Conference on Communications (NCC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125717407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-03-28DOI: 10.1109/NCC.2013.6487900
Rohit Budhiraja, B. Ramamurthi
Two-way relaying (TWR) reduces the loss in spectral efficiency caused in a conventional half-duplex relay. TWR is possible when two nodes exchange data simultaneously through a relay. In the case of cellular systems, data exchange between base station (BS) and users is usually not symmetric, e.g., a user might have uplink data to transmit during multiple access (MAC) phase, but might not have downlink data to receive during broadcast (BC) phase. This asymmetry in data exchange will reduce the gains of TWR. With infrastructure relays, where multiple users communicate through a relay, the BC phase following the MAC phase of a transmitting user (UE1) can be used by the relay to transmit downlink data to a second user (UE2). This will result in the receiving user UE2 not being able to cancel the back-propagating interference in the usual way. Precoders are designed in [1] to mitigate the back-propagating interference at UE2 for an amplify-and-forward (AF) relay. The present work studies the asymmetric data-flow problem for a shared AF relay, wherein multiple BS and users communicate using a common relay with multiple antennas. In this case, UE2 will observe inter-user interference (IUI) in addition to the back-propagating interference. Also, BS will now observe the IUI. We propose a precoder to jointly mitigate the back-propagating interference for UE2 and IUI for BS and UE2. It is shown that the sum-rate performance is better for the proposed precoder than the conventional zero-forcing precoder.
{"title":"Precoder design for asymmetric two-way AF shared relay","authors":"Rohit Budhiraja, B. Ramamurthi","doi":"10.1109/NCC.2013.6487900","DOIUrl":"https://doi.org/10.1109/NCC.2013.6487900","url":null,"abstract":"Two-way relaying (TWR) reduces the loss in spectral efficiency caused in a conventional half-duplex relay. TWR is possible when two nodes exchange data simultaneously through a relay. In the case of cellular systems, data exchange between base station (BS) and users is usually not symmetric, e.g., a user might have uplink data to transmit during multiple access (MAC) phase, but might not have downlink data to receive during broadcast (BC) phase. This asymmetry in data exchange will reduce the gains of TWR. With infrastructure relays, where multiple users communicate through a relay, the BC phase following the MAC phase of a transmitting user (UE1) can be used by the relay to transmit downlink data to a second user (UE2). This will result in the receiving user UE2 not being able to cancel the back-propagating interference in the usual way. Precoders are designed in [1] to mitigate the back-propagating interference at UE2 for an amplify-and-forward (AF) relay. The present work studies the asymmetric data-flow problem for a shared AF relay, wherein multiple BS and users communicate using a common relay with multiple antennas. In this case, UE2 will observe inter-user interference (IUI) in addition to the back-propagating interference. Also, BS will now observe the IUI. We propose a precoder to jointly mitigate the back-propagating interference for UE2 and IUI for BS and UE2. It is shown that the sum-rate performance is better for the proposed precoder than the conventional zero-forcing precoder.","PeriodicalId":202526,"journal":{"name":"2013 National Conference on Communications (NCC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127410964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-03-28DOI: 10.1109/NCC.2013.6487961
A. Mandpura, S. Prakriya, R. Mallik
We consider a two-way relaying (TWR) system over Rayleigh fading channels. An accurate closed form expression for its outage performance is derived assuming a fixed-gain relay. Unlike previous works that consider interference only at the relay or at the terminals, we assume interference at all three terminals of the system. Computer simulations demonstrate that the derived expressions are accurate at low and medium SNRs.
{"title":"Outage probability of Amplify-and-Forward two-way cooperative systems in presence of multiple co-channel interferers","authors":"A. Mandpura, S. Prakriya, R. Mallik","doi":"10.1109/NCC.2013.6487961","DOIUrl":"https://doi.org/10.1109/NCC.2013.6487961","url":null,"abstract":"We consider a two-way relaying (TWR) system over Rayleigh fading channels. An accurate closed form expression for its outage performance is derived assuming a fixed-gain relay. Unlike previous works that consider interference only at the relay or at the terminals, we assume interference at all three terminals of the system. Computer simulations demonstrate that the derived expressions are accurate at low and medium SNRs.","PeriodicalId":202526,"journal":{"name":"2013 National Conference on Communications (NCC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125655549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-03-28DOI: 10.1109/NCC.2013.6487985
Shubham Mittal, Swati Vyas, S. Prasanna
Recognition of expressions from speech has emerged as an important research area in the recent past. However, the scientific community still faces problems in differentiating between angry and lombard speech. The objective of this work is to analyze the differences between the Lombard and angry speech using the features representing the excitation source of speech production. The instantaneous fundamental frequency, the strength of excitation and loudness measure, reflecting the sharpness of the impulse-like excitation around the epochs are used as excitation source features. The distributions curves of these three parameters are next plotted. We employ the concept of Gaussian Mixture Models (GMMs) and KL divergence (a measure of relative entropy) to calculate an exact measure of difference between angry, lombard and neutral speech with context to the aforementioned parameters and successfully show differences among the Lombard and angry speech signals at the excitation source level.
{"title":"Analysis of lombard and angry speech using Gaussian Mixture Models and KL divergence","authors":"Shubham Mittal, Swati Vyas, S. Prasanna","doi":"10.1109/NCC.2013.6487985","DOIUrl":"https://doi.org/10.1109/NCC.2013.6487985","url":null,"abstract":"Recognition of expressions from speech has emerged as an important research area in the recent past. However, the scientific community still faces problems in differentiating between angry and lombard speech. The objective of this work is to analyze the differences between the Lombard and angry speech using the features representing the excitation source of speech production. The instantaneous fundamental frequency, the strength of excitation and loudness measure, reflecting the sharpness of the impulse-like excitation around the epochs are used as excitation source features. The distributions curves of these three parameters are next plotted. We employ the concept of Gaussian Mixture Models (GMMs) and KL divergence (a measure of relative entropy) to calculate an exact measure of difference between angry, lombard and neutral speech with context to the aforementioned parameters and successfully show differences among the Lombard and angry speech signals at the excitation source level.","PeriodicalId":202526,"journal":{"name":"2013 National Conference on Communications (NCC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127045715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-03-28DOI: 10.1109/NCC.2013.6487998
Manav Bhaykar, Jainath Yadav, K. S. Rao
In this paper we have analysed emotion recognition performance in speaker dependent, text dependent, text independent, speaker independent, language dependent and cross language emotion recognition from speech. These studies were carried out using Gaussian Mixture Model (GMM) and Hidden Markov Model (HMM) as classification models. IITKGP-SESC and IITKGP-SEHSC emotional speech corpora are used for carried out these studies. The emotions considered in this study are anger, disgust, fear, happy, neutral, sarcastic, and surprise. Mel Frequency Cepstral Coefficients (MFCCs) features are used for identifying the emotions. Emotion recognition performance of speaker dependent mode is better than speaker independent and cross language modes. From the results it is observed that emotion recognition performance depends on the speaker and language.
{"title":"Speaker dependent, speaker independent and cross language emotion recognition from speech using GMM and HMM","authors":"Manav Bhaykar, Jainath Yadav, K. S. Rao","doi":"10.1109/NCC.2013.6487998","DOIUrl":"https://doi.org/10.1109/NCC.2013.6487998","url":null,"abstract":"In this paper we have analysed emotion recognition performance in speaker dependent, text dependent, text independent, speaker independent, language dependent and cross language emotion recognition from speech. These studies were carried out using Gaussian Mixture Model (GMM) and Hidden Markov Model (HMM) as classification models. IITKGP-SESC and IITKGP-SEHSC emotional speech corpora are used for carried out these studies. The emotions considered in this study are anger, disgust, fear, happy, neutral, sarcastic, and surprise. Mel Frequency Cepstral Coefficients (MFCCs) features are used for identifying the emotions. Emotion recognition performance of speaker dependent mode is better than speaker independent and cross language modes. From the results it is observed that emotion recognition performance depends on the speaker and language.","PeriodicalId":202526,"journal":{"name":"2013 National Conference on Communications (NCC)","volume":"37 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130420456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-03-28DOI: 10.1109/NCC.2013.6487947
R. P. Kumar, R. S. Kshetrimayum
Parallel concatenated Gallager codes (PCGC) is a class of concatenated codes based on LDPC component codes. Conventional attempts for concatenating LDPC in parallel using the well known ‘Turbo code structure’ without interleavers have not been widely successful, because of its performance limitation and decoding delay. In this paper we present an efficient methodology for parallel concatenation of LDPC codes. We show that proposed methodology for PCGC outperforms existing PCGC in terms of BER performance in both AWGN and flat fading Rayleigh channels. We also present that proposed PCGC outperforms existing PCGC in terms of complexity as well as decoding delay.
{"title":"An efficient methodology for parallel concatenation of LDPC codes with reduced complexity and decoding delay","authors":"R. P. Kumar, R. S. Kshetrimayum","doi":"10.1109/NCC.2013.6487947","DOIUrl":"https://doi.org/10.1109/NCC.2013.6487947","url":null,"abstract":"Parallel concatenated Gallager codes (PCGC) is a class of concatenated codes based on LDPC component codes. Conventional attempts for concatenating LDPC in parallel using the well known ‘Turbo code structure’ without interleavers have not been widely successful, because of its performance limitation and decoding delay. In this paper we present an efficient methodology for parallel concatenation of LDPC codes. We show that proposed methodology for PCGC outperforms existing PCGC in terms of BER performance in both AWGN and flat fading Rayleigh channels. We also present that proposed PCGC outperforms existing PCGC in terms of complexity as well as decoding delay.","PeriodicalId":202526,"journal":{"name":"2013 National Conference on Communications (NCC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130848258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-03-28DOI: 10.1109/NCC.2013.6487992
L. Kumar, Kushagra Singhal, R. Sinha, R. Hegde
The performance of an ICA-Beamforming framework in multi source environments is often limited by the resolution of the direction of arrival (DOA) estimation and by permutation errors. In this paper a framework that addresses these issues, using the MUSIC-Group delay method of DOA estimation has been described. A new cost function defined for this purpose iteratively computes the correlation between the signals recovered using ICA and beamforming methods with signals recovered from the MUSIC-Group delay method as a reference. This cost function is then used to select the demixing matrix at each iteration until a convergence criterion is met. Source separation is then carried out using the final demixing matrix. Since the MUSIC-Group delay method exhibits high resolution, the DOA estimates obtained can be sorted more effectively to solve the permutation problems in ICA. TIMIT speech data is spatialized under a reverberant environment at various direct-to-reverberant energy ratio (DRR) to obtain S-TIMIT data. Experiments on speaker dependent large vocabulary speech recognition are conducted for a mixture of two speakers from the S-TIMIT data. The word error rates corresponding to the target and the non-target speaker using the proposed method indicate reasonable improvements when compared to conventional methods like ICA and ICA-Beamforming methods.
{"title":"Significance of the MUSIC-group delay method in an ICA-Beamforming framework for speech separation in multi source environments","authors":"L. Kumar, Kushagra Singhal, R. Sinha, R. Hegde","doi":"10.1109/NCC.2013.6487992","DOIUrl":"https://doi.org/10.1109/NCC.2013.6487992","url":null,"abstract":"The performance of an ICA-Beamforming framework in multi source environments is often limited by the resolution of the direction of arrival (DOA) estimation and by permutation errors. In this paper a framework that addresses these issues, using the MUSIC-Group delay method of DOA estimation has been described. A new cost function defined for this purpose iteratively computes the correlation between the signals recovered using ICA and beamforming methods with signals recovered from the MUSIC-Group delay method as a reference. This cost function is then used to select the demixing matrix at each iteration until a convergence criterion is met. Source separation is then carried out using the final demixing matrix. Since the MUSIC-Group delay method exhibits high resolution, the DOA estimates obtained can be sorted more effectively to solve the permutation problems in ICA. TIMIT speech data is spatialized under a reverberant environment at various direct-to-reverberant energy ratio (DRR) to obtain S-TIMIT data. Experiments on speaker dependent large vocabulary speech recognition are conducted for a mixture of two speakers from the S-TIMIT data. The word error rates corresponding to the target and the non-target speaker using the proposed method indicate reasonable improvements when compared to conventional methods like ICA and ICA-Beamforming methods.","PeriodicalId":202526,"journal":{"name":"2013 National Conference on Communications (NCC)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128988681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-03-28DOI: 10.1109/NCC.2013.6487922
Sharbari Banerjee, M. Agrawal
High rate data transmission in an underwater link necessitates the use of multiple antennas. Intersymbol interference (ISI), one of the major issues in single antenna underwater acoustic (UWA) systems, becomes even more prominent while establishing a multi-antenna communication link. Deploying an adaptive equalizer to mitigate this ISI incurs huge computational complexity as the equalizer needs large number of taps. Also, this might require a compromise in data rate and/or error performance of the system. A solution to this is the time reversal (TR) technique which has been proven to be a computationally simpler approach to combat ISI and to provide high signal to noise ratio gains in a single antenna system. In this paper, we explore the possibility of the TR technique in improving error rate, and minimizing computational burden of the equalizer in a multi-antenna UWA link. We present an experimental demonstration which shows that while reducing the computational complexity, the TR technique also provides better error performance at higher data rate.
{"title":"A time reversal technique for minimizing equalizer complexity in high rate multi-antenna UWA link","authors":"Sharbari Banerjee, M. Agrawal","doi":"10.1109/NCC.2013.6487922","DOIUrl":"https://doi.org/10.1109/NCC.2013.6487922","url":null,"abstract":"High rate data transmission in an underwater link necessitates the use of multiple antennas. Intersymbol interference (ISI), one of the major issues in single antenna underwater acoustic (UWA) systems, becomes even more prominent while establishing a multi-antenna communication link. Deploying an adaptive equalizer to mitigate this ISI incurs huge computational complexity as the equalizer needs large number of taps. Also, this might require a compromise in data rate and/or error performance of the system. A solution to this is the time reversal (TR) technique which has been proven to be a computationally simpler approach to combat ISI and to provide high signal to noise ratio gains in a single antenna system. In this paper, we explore the possibility of the TR technique in improving error rate, and minimizing computational burden of the equalizer in a multi-antenna UWA link. We present an experimental demonstration which shows that while reducing the computational complexity, the TR technique also provides better error performance at higher data rate.","PeriodicalId":202526,"journal":{"name":"2013 National Conference on Communications (NCC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129141796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-03-28DOI: 10.1109/NCC.2013.6487966
K. V. Phani Kumar, S. S. Karthikeyan
Sub wavelength resonators are widely used for size miniaturization and performance enhancement of microwave devices. In this paper, a sub wavelength resonator called an open complementary split ring resonator (OCSRR) is used to design a bandstop filter. Two open stubs of length λg/4 and a single OCSRR are employed for the design of bandstop filter. The open stubs are folded in opposite direction to achieve compact structure. The proposed bandstop filter is having a rejection band of 2.25 GHz. When compared to the conventional bandstop filter, the proposed bandstop filter rejection bandwidth is increased by 59.11% and size is reduced by 15%.
{"title":"A compact and high performance band-stop filter using open complementary split ring resonator","authors":"K. V. Phani Kumar, S. S. Karthikeyan","doi":"10.1109/NCC.2013.6487966","DOIUrl":"https://doi.org/10.1109/NCC.2013.6487966","url":null,"abstract":"Sub wavelength resonators are widely used for size miniaturization and performance enhancement of microwave devices. In this paper, a sub wavelength resonator called an open complementary split ring resonator (OCSRR) is used to design a bandstop filter. Two open stubs of length λg/4 and a single OCSRR are employed for the design of bandstop filter. The open stubs are folded in opposite direction to achieve compact structure. The proposed bandstop filter is having a rejection band of 2.25 GHz. When compared to the conventional bandstop filter, the proposed bandstop filter rejection bandwidth is increased by 59.11% and size is reduced by 15%.","PeriodicalId":202526,"journal":{"name":"2013 National Conference on Communications (NCC)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121580849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-03-28DOI: 10.1109/NCC.2013.6488037
S. Iyer, Shree Prakash Singh
In a translucent wavelength division multiplexed (WDM) network, development of an optical control plane (OCP) that is aware of the location and number of available regenerators and all-optical wavelength converters (AOWCs) is of paramount importance. However, generalized multi-protocol label switching (GMPLS) protocol suite does not consider the distribution of regenerator and AOWC information to all network nodes. In this paper, we propose an OCP architecture which disseminates regenerator and AOWC information to all the network nodes. The Physical Layer Impairment-Signal Quality Aware Routing and Wavelength Assignment (PLISQARWA) algorithm is employed for RWA. The electro-optical hybrid translucent nodes have been employed which, from a practical perspective, are based on limited range wavelength converters (LRWCs). Performance of the proposed limited range OCP (LR-P-OCP), is compared with the full range OCP (FR-P-OCP) and the hybrid OCP (H-OCP) approach.
{"title":"A novel optical control plane for switching a limited range wavelength converter based electro-optical hybrid node in translucent WDM optical networks","authors":"S. Iyer, Shree Prakash Singh","doi":"10.1109/NCC.2013.6488037","DOIUrl":"https://doi.org/10.1109/NCC.2013.6488037","url":null,"abstract":"In a translucent wavelength division multiplexed (WDM) network, development of an optical control plane (OCP) that is aware of the location and number of available regenerators and all-optical wavelength converters (AOWCs) is of paramount importance. However, generalized multi-protocol label switching (GMPLS) protocol suite does not consider the distribution of regenerator and AOWC information to all network nodes. In this paper, we propose an OCP architecture which disseminates regenerator and AOWC information to all the network nodes. The Physical Layer Impairment-Signal Quality Aware Routing and Wavelength Assignment (PLISQARWA) algorithm is employed for RWA. The electro-optical hybrid translucent nodes have been employed which, from a practical perspective, are based on limited range wavelength converters (LRWCs). Performance of the proposed limited range OCP (LR-P-OCP), is compared with the full range OCP (FR-P-OCP) and the hybrid OCP (H-OCP) approach.","PeriodicalId":202526,"journal":{"name":"2013 National Conference on Communications (NCC)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114315983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：