Pub Date : 2009-10-08DOI: 10.1109/APCC.2009.5375679
Jianwei Huang, Xiwei Huang
We study the problem of revenue management in a cognitive spectrum underlay network, where the primary user chooses the bandwidth and tolerable interference levels for the secondary users. We show that the interference received by each secondary user is the same in a large system regime, and a simple pricing scheme achieves the efficient resource allocation at the market clearing equilibrium. We further show that the key for the primary user to maximize revenue is to consider the secondary users' power-interference elasticity, which is a new concept proposed and is different from all elasticity concepts used in the previous networking literature. When this elasticity is negative (positive, respectively), the primary user should increase (decrease, respectively) the bandwidth and tolerable interference level to increase revenue.
{"title":"Revenue management for cognitive spectrum underlay networks: An interference elasticity perspective","authors":"Jianwei Huang, Xiwei Huang","doi":"10.1109/APCC.2009.5375679","DOIUrl":"https://doi.org/10.1109/APCC.2009.5375679","url":null,"abstract":"We study the problem of revenue management in a cognitive spectrum underlay network, where the primary user chooses the bandwidth and tolerable interference levels for the secondary users. We show that the interference received by each secondary user is the same in a large system regime, and a simple pricing scheme achieves the efficient resource allocation at the market clearing equilibrium. We further show that the key for the primary user to maximize revenue is to consider the secondary users' power-interference elasticity, which is a new concept proposed and is different from all elasticity concepts used in the previous networking literature. When this elasticity is negative (positive, respectively), the primary user should increase (decrease, respectively) the bandwidth and tolerable interference level to increase revenue.","PeriodicalId":217893,"journal":{"name":"2009 15th Asia-Pacific Conference on Communications","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131372279","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 : 2009-10-08DOI: 10.1109/APCC.2009.5375485
Erick Jimenez Rodriguez, Toshiro Nunome, S. Tasaka
This paper investigates QoE (Quality of Experience) of MVV (Multi-View Video) and audio transmission over IP networks. Unlike previous works that mainly discuss MVV transmission from aspects of video codecs, we study MVV and audio transmission under various IP traffic and delay conditions by experiment. We compare two schemes: a scheme that the user watches a single viewpoint, and the one that he/she can choose one viewpoint from many viewpoints. At the same time, we perform a user study which helps us to understand the user behavior in the MVV system under those conditions. As a result, we show that high QoE can be achieved when the user can change the viewpoint with low load traffic and delay.
{"title":"Assessment of user behavior and QoE in multi-view video and audio IP transmission","authors":"Erick Jimenez Rodriguez, Toshiro Nunome, S. Tasaka","doi":"10.1109/APCC.2009.5375485","DOIUrl":"https://doi.org/10.1109/APCC.2009.5375485","url":null,"abstract":"This paper investigates QoE (Quality of Experience) of MVV (Multi-View Video) and audio transmission over IP networks. Unlike previous works that mainly discuss MVV transmission from aspects of video codecs, we study MVV and audio transmission under various IP traffic and delay conditions by experiment. We compare two schemes: a scheme that the user watches a single viewpoint, and the one that he/she can choose one viewpoint from many viewpoints. At the same time, we perform a user study which helps us to understand the user behavior in the MVV system under those conditions. As a result, we show that high QoE can be achieved when the user can change the viewpoint with low load traffic and delay.","PeriodicalId":217893,"journal":{"name":"2009 15th Asia-Pacific Conference on Communications","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132593790","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 : 2009-10-08DOI: 10.1109/APCC.2009.5375472
Haifeng Hu, Zhen Yang
Wireless Sensor Networks (WSN) are mainly characterized by dense deployment of sensor nodes. Due to the spatial correlation between sensor nodes and constrained resources of nodes, Spatial Correlation-based Mobile Agent Routing (SCMAR) algorithm is proposed to exploit such correlation for the realization of advanced efficient Mobile Agent routing protocol in order to estimate the event with energy efficient way. The theoretical framework of SCMAR is developed to suppress redundancy information collection under a distortion constraint for reducing the energy consumption without compromising the estimated reliability achieved at the sink. Finally, Simulation results show that SCMAR achieves better performance than existing Mobile Agent Routes for Data Fusion (MARDF) routing algorithm from perspectives of energy consumption in a variety of correlated data gathering applications.
{"title":"Spatial correlation-based mobile agent routing algorithm in wireless sensor networks","authors":"Haifeng Hu, Zhen Yang","doi":"10.1109/APCC.2009.5375472","DOIUrl":"https://doi.org/10.1109/APCC.2009.5375472","url":null,"abstract":"Wireless Sensor Networks (WSN) are mainly characterized by dense deployment of sensor nodes. Due to the spatial correlation between sensor nodes and constrained resources of nodes, Spatial Correlation-based Mobile Agent Routing (SCMAR) algorithm is proposed to exploit such correlation for the realization of advanced efficient Mobile Agent routing protocol in order to estimate the event with energy efficient way. The theoretical framework of SCMAR is developed to suppress redundancy information collection under a distortion constraint for reducing the energy consumption without compromising the estimated reliability achieved at the sink. Finally, Simulation results show that SCMAR achieves better performance than existing Mobile Agent Routes for Data Fusion (MARDF) routing algorithm from perspectives of energy consumption in a variety of correlated data gathering applications.","PeriodicalId":217893,"journal":{"name":"2009 15th Asia-Pacific Conference on Communications","volume":"346 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134009706","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 : 2009-10-08DOI: 10.1109/APCC.2009.5375673
B. Da, C. Ko
As the number of users increases, the amount of required feedback Channel State Information (CSI) at the base station becomes huge and prohibits the feasibility of conventional adaptive resource allocation algorithms in fairness-aware downlink OFDMA systems. Thus, this paper presents a novel mechanism making use of multi-user diversity to greatly reduce the feedback CSI while maintaining almost the same system performance. Some simulation results are given to verify this partial feedback mechanism.
{"title":"Fairness-aware resource allocation in downlink OFDMA systems with partial feedback CSI","authors":"B. Da, C. Ko","doi":"10.1109/APCC.2009.5375673","DOIUrl":"https://doi.org/10.1109/APCC.2009.5375673","url":null,"abstract":"As the number of users increases, the amount of required feedback Channel State Information (CSI) at the base station becomes huge and prohibits the feasibility of conventional adaptive resource allocation algorithms in fairness-aware downlink OFDMA systems. Thus, this paper presents a novel mechanism making use of multi-user diversity to greatly reduce the feedback CSI while maintaining almost the same system performance. Some simulation results are given to verify this partial feedback mechanism.","PeriodicalId":217893,"journal":{"name":"2009 15th Asia-Pacific Conference on Communications","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115205839","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 : 2009-10-08DOI: 10.1109/APCC.2009.5375626
T. Iwata, N. Namiki, N. Kawano, T. Takano, H. Hanada, K. Asari, Y. Kono, H. Noda, S. Tsuruta, F. Kikuchi, Qinghui Liu, Koji Matsumoto, Y. Ishihara, S. Goossens, T. Ishikawa, M. Ogawa, Koji Tanaka, Z. Yamamoto
SELENE (Selenological and Engineering Explorer) is a Japan's lunar probe which was launched and injected into the lunar polar orbit in 2007. The Main Orbiter of SELENE named Kaguya has separated the Relay Satellite: Rstar (Okina). We have executed four-way Doppler measurements which determined the orbit of Kaguya aviating above the lunar far side. The ground station up-links ranging signals, and the relay satellite transponder on Rstar (RSAT-1) relays the carrier waves to Kaguya. Then the transponder on Kaguya (RSAT-2) receives the signals and returns to Rstar, and down-linked to UDSC. Three of four receivers through four-way links acquires signals and tracks Doppler frequency shift with phased lock loops. For that purpose, the receivers should be locked sequentially under the condition of large Doppler shift due to mutual velocities of three moving bodies. The receivers were designed in consideration of the above condition and system operability. Eventually, our system has realized the first case to track two fully moving links between the lunar orbiters and carried out Doppler measurements. Results of the orbit determinations for Kaguya above the lunar far side have shown the anomaly distributions of the gravity fields which could be scarcely found by the conventional two-way RARR methods.
{"title":"Four-way Doppler tracking for lunar gravity measurements executed by Kaguya and its relay satellite: Okina","authors":"T. Iwata, N. Namiki, N. Kawano, T. Takano, H. Hanada, K. Asari, Y. Kono, H. Noda, S. Tsuruta, F. Kikuchi, Qinghui Liu, Koji Matsumoto, Y. Ishihara, S. Goossens, T. Ishikawa, M. Ogawa, Koji Tanaka, Z. Yamamoto","doi":"10.1109/APCC.2009.5375626","DOIUrl":"https://doi.org/10.1109/APCC.2009.5375626","url":null,"abstract":"SELENE (Selenological and Engineering Explorer) is a Japan's lunar probe which was launched and injected into the lunar polar orbit in 2007. The Main Orbiter of SELENE named Kaguya has separated the Relay Satellite: Rstar (Okina). We have executed four-way Doppler measurements which determined the orbit of Kaguya aviating above the lunar far side. The ground station up-links ranging signals, and the relay satellite transponder on Rstar (RSAT-1) relays the carrier waves to Kaguya. Then the transponder on Kaguya (RSAT-2) receives the signals and returns to Rstar, and down-linked to UDSC. Three of four receivers through four-way links acquires signals and tracks Doppler frequency shift with phased lock loops. For that purpose, the receivers should be locked sequentially under the condition of large Doppler shift due to mutual velocities of three moving bodies. The receivers were designed in consideration of the above condition and system operability. Eventually, our system has realized the first case to track two fully moving links between the lunar orbiters and carried out Doppler measurements. Results of the orbit determinations for Kaguya above the lunar far side have shown the anomaly distributions of the gravity fields which could be scarcely found by the conventional two-way RARR methods.","PeriodicalId":217893,"journal":{"name":"2009 15th Asia-Pacific Conference on Communications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115333862","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 : 2009-10-08DOI: 10.1109/APCC.2009.5375572
Xiaoliang Wang, Xiaohong Jiang, S. Horiguchi
The lack of optical buffer is still one of the main problems that hinder the development of all optical network. The current works on this topic mainly focus on the emulation of optical buffers by using bufferless switch fabric and fiber delay line (SDL). Recent advances have shown the feasibility of emulating many kinds of optical buffers, such as First In First Out (FIFO) buffer, priority buffer etc. The Last In First Out (LIFO) buffer is another important network component that can be used for congestion control and providing quality of service guarantee in the network. In [1] Huang et al. introduced a recursive construction of LIFO buffer with buffer size B by using no less than 9 log B delay lines. In this paper, we explore a more effective construction of optical LIFO buffer from SDL and the feedback switch architecture. Based on such an architecture, a scheduling algorithm is proposed to emulate the LIFO buffer of size B with 2 log B delay lines.
{"title":"Packets scheduling for optical SDL LIFO buffers","authors":"Xiaoliang Wang, Xiaohong Jiang, S. Horiguchi","doi":"10.1109/APCC.2009.5375572","DOIUrl":"https://doi.org/10.1109/APCC.2009.5375572","url":null,"abstract":"The lack of optical buffer is still one of the main problems that hinder the development of all optical network. The current works on this topic mainly focus on the emulation of optical buffers by using bufferless switch fabric and fiber delay line (SDL). Recent advances have shown the feasibility of emulating many kinds of optical buffers, such as First In First Out (FIFO) buffer, priority buffer etc. The Last In First Out (LIFO) buffer is another important network component that can be used for congestion control and providing quality of service guarantee in the network. In [1] Huang et al. introduced a recursive construction of LIFO buffer with buffer size B by using no less than 9 log B delay lines. In this paper, we explore a more effective construction of optical LIFO buffer from SDL and the feedback switch architecture. Based on such an architecture, a scheduling algorithm is proposed to emulate the LIFO buffer of size B with 2 log B delay lines.","PeriodicalId":217893,"journal":{"name":"2009 15th Asia-Pacific Conference on Communications","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114231822","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 : 2009-10-08DOI: 10.1109/APCC.2009.5375514
Wenming Song, Shengming Jiang, G. Wei
Many existing routing protocols for wireless mesh networks (WMNs) are based on minimal hop counts and cannot fit WMNs because they did not take into account congestions in networks. Although other multipath routing protocols use node- or link-disjoint routes, they are still based on minimal hop counts and may even cause extra congestion into networks. This is because a node-disjoint path may contain link-joined segments, which could be congested as many flows use them to forward packets. This paper proposes two congestion-aware routing metrics to enable routing protocols to consider congestion issues by exploring information available at the data link layer. One metric is called buffer occupancy ratio which considers the congestion status of nodes. The other metric is called successful frame sending rate which considers the congestion status of links. These two metrics are used to design a multipath routing protocol to find multiple less congested routes to improve network throughput. The simulation study has shown that the proposed routing scheme achieves significant throughput improvement with much more reliable packet delivery.
{"title":"A congestion-aware multipath routing with cross layer design for wireless mesh networks","authors":"Wenming Song, Shengming Jiang, G. Wei","doi":"10.1109/APCC.2009.5375514","DOIUrl":"https://doi.org/10.1109/APCC.2009.5375514","url":null,"abstract":"Many existing routing protocols for wireless mesh networks (WMNs) are based on minimal hop counts and cannot fit WMNs because they did not take into account congestions in networks. Although other multipath routing protocols use node- or link-disjoint routes, they are still based on minimal hop counts and may even cause extra congestion into networks. This is because a node-disjoint path may contain link-joined segments, which could be congested as many flows use them to forward packets. This paper proposes two congestion-aware routing metrics to enable routing protocols to consider congestion issues by exploring information available at the data link layer. One metric is called buffer occupancy ratio which considers the congestion status of nodes. The other metric is called successful frame sending rate which considers the congestion status of links. These two metrics are used to design a multipath routing protocol to find multiple less congested routes to improve network throughput. The simulation study has shown that the proposed routing scheme achieves significant throughput improvement with much more reliable packet delivery.","PeriodicalId":217893,"journal":{"name":"2009 15th Asia-Pacific Conference on Communications","volume":"127 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115791948","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 : 2009-10-08DOI: 10.1109/APCC.2009.5375589
Nichapat Pathanawongthum, P. Cherntanomwong
In this paper, the human body effect on indoor localization is evaluated based on experiments. Radio Frequency Identification (RFID) technology is used for this localization system. The location of a RFID reader is estimated based on the known locations of the RFID tags attached to the ceiling with 60 cm separation. Two cases of experiments are considered. For the first case, the RFID reader is attached to the camera tripod and the second case, it is attached to human body. Then, two simple location estimation methods are employed. To evaluate the effect of human body on the localization, the results of location estimation with and without human are compared. The experimental results illustrate that the human body affects the location estimation in some certain. However, the error of location estimation is still less than 50 cm which is applicable for some indoor applications.
{"title":"Empirical evaluation of RFID-based indoor localization with human body effect","authors":"Nichapat Pathanawongthum, P. Cherntanomwong","doi":"10.1109/APCC.2009.5375589","DOIUrl":"https://doi.org/10.1109/APCC.2009.5375589","url":null,"abstract":"In this paper, the human body effect on indoor localization is evaluated based on experiments. Radio Frequency Identification (RFID) technology is used for this localization system. The location of a RFID reader is estimated based on the known locations of the RFID tags attached to the ceiling with 60 cm separation. Two cases of experiments are considered. For the first case, the RFID reader is attached to the camera tripod and the second case, it is attached to human body. Then, two simple location estimation methods are employed. To evaluate the effect of human body on the localization, the results of location estimation with and without human are compared. The experimental results illustrate that the human body affects the location estimation in some certain. However, the error of location estimation is still less than 50 cm which is applicable for some indoor applications.","PeriodicalId":217893,"journal":{"name":"2009 15th Asia-Pacific Conference on Communications","volume":"440 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115924292","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 : 2009-10-08DOI: 10.1109/APCC.2009.5375554
K. Nonaka
Novel pulse correlation sensing system was proposed for wide region environmental distributed monitoring. Using very simple technique and optional component, the performances of signals polarization stability, sensitivity, and sensing dynamic range are dramatically improved. In addition, feasibility of a novel sensor interrogation scheme that combines the advantages of the distributed and point sensor systems using a robust interrogation technique are proposed. The high linearity, sensitivity and stability of the measurements for infrastructure requirement monitoring are successfully obtained.
{"title":"Recent evolutions of pulse correlation sensing system system for reliable, high resolution, wide dynamic range and region selectable distributed environment sensing","authors":"K. Nonaka","doi":"10.1109/APCC.2009.5375554","DOIUrl":"https://doi.org/10.1109/APCC.2009.5375554","url":null,"abstract":"Novel pulse correlation sensing system was proposed for wide region environmental distributed monitoring. Using very simple technique and optional component, the performances of signals polarization stability, sensitivity, and sensing dynamic range are dramatically improved. In addition, feasibility of a novel sensor interrogation scheme that combines the advantages of the distributed and point sensor systems using a robust interrogation technique are proposed. The high linearity, sensitivity and stability of the measurements for infrastructure requirement monitoring are successfully obtained.","PeriodicalId":217893,"journal":{"name":"2009 15th Asia-Pacific Conference on Communications","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114945207","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 : 2009-10-08DOI: 10.1109/APCC.2009.5375571
Xinghua Tu, Z. Yin, Yue-chun Shi, Xiangfei Chen
Based on a sampled fiber Bragg grating, a novel approach to obtain high channel-count comb filters is proposed for wavelength-division-multiplexing (WDM) system in this letter. There is a non-continuous linear chirped structure like a ladder in grating period. And refractive index modulation amplitude with Hamming spatial profile is used within the samples. The 26-channel comb filter with channel spacing of 50GHz is then fabricated, it features in multiple equalized passbands with flat-top steep-edge and high transmittance which will benefit as multi-channel optical add/drop filters in WDM system.
{"title":"A novel sampled Bragg grating comb filter with a ladder chirped structure","authors":"Xinghua Tu, Z. Yin, Yue-chun Shi, Xiangfei Chen","doi":"10.1109/APCC.2009.5375571","DOIUrl":"https://doi.org/10.1109/APCC.2009.5375571","url":null,"abstract":"Based on a sampled fiber Bragg grating, a novel approach to obtain high channel-count comb filters is proposed for wavelength-division-multiplexing (WDM) system in this letter. There is a non-continuous linear chirped structure like a ladder in grating period. And refractive index modulation amplitude with Hamming spatial profile is used within the samples. The 26-channel comb filter with channel spacing of 50GHz is then fabricated, it features in multiple equalized passbands with flat-top steep-edge and high transmittance which will benefit as multi-channel optical add/drop filters in WDM system.","PeriodicalId":217893,"journal":{"name":"2009 15th Asia-Pacific Conference on Communications","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122754818","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}
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