Pub Date : 2017-10-01DOI: 10.1109/PIMRC.2017.8292599
M. Almekhlafi, A. Ibrahim, Y. Fahmy, H. Elsayed, M. Khairy
Backhaul technologies include traditional technologies such as Radio Frequency (RF) or Optical Fibers (OF) backhauls and include new technologies such as Free Space Optical (FSO) or hybrid RF/FSO backhauls. This paper aims to improve the network connectivity by adding a limited number of OF links along with the wireless connections of RF, FSO or hybrid RF/FSO backhaul links between the small cells. The connectivity is improved while satisfying the minimum data rate (R) constraint and taking into consideration the cost and reliability of different links. We address the problem of maximizing the algebraic connectivity due to inserting different types of backhaul technologies. The Fiedler value, which is the algebraic connectivity of a graph, is used to measure the connectivity of the network. We show that under realistic cost assumption and linear relaxation, the problem is a convex optimization problem. Simulation results show that, using the proposed solution, a high connectivity can be achieved.
{"title":"Hybrid optical/RF backhauling for 5G networks","authors":"M. Almekhlafi, A. Ibrahim, Y. Fahmy, H. Elsayed, M. Khairy","doi":"10.1109/PIMRC.2017.8292599","DOIUrl":"https://doi.org/10.1109/PIMRC.2017.8292599","url":null,"abstract":"Backhaul technologies include traditional technologies such as Radio Frequency (RF) or Optical Fibers (OF) backhauls and include new technologies such as Free Space Optical (FSO) or hybrid RF/FSO backhauls. This paper aims to improve the network connectivity by adding a limited number of OF links along with the wireless connections of RF, FSO or hybrid RF/FSO backhaul links between the small cells. The connectivity is improved while satisfying the minimum data rate (R) constraint and taking into consideration the cost and reliability of different links. We address the problem of maximizing the algebraic connectivity due to inserting different types of backhaul technologies. The Fiedler value, which is the algebraic connectivity of a graph, is used to measure the connectivity of the network. We show that under realistic cost assumption and linear relaxation, the problem is a convex optimization problem. Simulation results show that, using the proposed solution, a high connectivity can be achieved.","PeriodicalId":397107,"journal":{"name":"2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"382 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126729175","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 : 2017-10-01DOI: 10.1109/PIMRC.2017.8292209
A. S. Omar, O. Basir
Power and computing limitations hinder the ability of many devices to support stringent security protocols. Smart sensors, RFID tags, and wearable devices are typical examples of such devices. Lightweight cryptography is concerned with the design and implementation of cryptography algorithms in environments with limited computing and power resources. This paper presents a realization of a hardware efficient lightweight cryptography block cipher SIMON in C/C++ (SIMON 32/64 and 64/128). Analysis is performed in order to investigate its input/output cross correlation and among output sets. The proposed block cipher's immunity to linear span attacks is also investigated using the Berlekamp-Massy algorithm. It is concluded that the proposed block cipher is not immune to linear span attacks, as the analysis has shown a linear span for certain components to be less than N/2, with a profile of probability of 1/3 in 1 million iterations.
{"title":"SIMON 32/64 and 64/128 block cipher: Study of cross correlation and linear span attack immunity","authors":"A. S. Omar, O. Basir","doi":"10.1109/PIMRC.2017.8292209","DOIUrl":"https://doi.org/10.1109/PIMRC.2017.8292209","url":null,"abstract":"Power and computing limitations hinder the ability of many devices to support stringent security protocols. Smart sensors, RFID tags, and wearable devices are typical examples of such devices. Lightweight cryptography is concerned with the design and implementation of cryptography algorithms in environments with limited computing and power resources. This paper presents a realization of a hardware efficient lightweight cryptography block cipher SIMON in C/C++ (SIMON 32/64 and 64/128). Analysis is performed in order to investigate its input/output cross correlation and among output sets. The proposed block cipher's immunity to linear span attacks is also investigated using the Berlekamp-Massy algorithm. It is concluded that the proposed block cipher is not immune to linear span attacks, as the analysis has shown a linear span for certain components to be less than N/2, with a profile of probability of 1/3 in 1 million iterations.","PeriodicalId":397107,"journal":{"name":"2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114948270","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 : 2017-10-01DOI: 10.1109/PIMRC.2017.8292246
Tzung-Hua Tsai, Chi-chao Chao
In this paper, hybrid beamforming design for multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems is studied over the indoor millimeter wave (mmWave) channels. Under practical hybrid beamforming constraints for multicarrier systems, we propose the sub-system SVD hybrid beamforming design which provides good performance with low complexity. Moreover, we reduce the amount of the required channel state information (CSI) in our design based on the statistical properties of indoor mmWave channels. Simulation results show that our design achieves the performance of traditional full-digital beamforming even if the amount of CSI is greatly reduced.
{"title":"Hybrid beamforming for indoor mmWave multi-carrier systems under sub-system SVD","authors":"Tzung-Hua Tsai, Chi-chao Chao","doi":"10.1109/PIMRC.2017.8292246","DOIUrl":"https://doi.org/10.1109/PIMRC.2017.8292246","url":null,"abstract":"In this paper, hybrid beamforming design for multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems is studied over the indoor millimeter wave (mmWave) channels. Under practical hybrid beamforming constraints for multicarrier systems, we propose the sub-system SVD hybrid beamforming design which provides good performance with low complexity. Moreover, we reduce the amount of the required channel state information (CSI) in our design based on the statistical properties of indoor mmWave channels. Simulation results show that our design achieves the performance of traditional full-digital beamforming even if the amount of CSI is greatly reduced.","PeriodicalId":397107,"journal":{"name":"2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115492007","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 : 2017-10-01DOI: 10.1109/PIMRC.2017.8292690
Kai Kientopf, S. Raza, Simon Lansing, M. Günes
The smart city is one of the prominent applications of the Internet of Things (IoT) and offers innovative services to its citizens. It can be viewed as segmented network in which different networks communicate via gateways through the global Internet. However, for the provision of services anywhere in a dense and heterogeneous IoT environment, this remote cloud infrastructure has limitations for scalability and is prone to long transmission latency. A decentralized architecture, such as fog computing, can efficiently minimize latency and support scalability by executing services to close proximity of objects. Physical proximity is not fixed and extends from gateways to dedicated service objects anywhere in the IoT. Therefore, an efficient platform is indispensable that improves network performance for scalability and low latency through service migration. We propose a service management platform under fog computing architecture that supports migrating services. The proposed service management platform reduces communication latency between service and object as compared to services on gateways or in remote cloud infrastructure.
{"title":"Service management platform to support service migrations for IoT smart city applications","authors":"Kai Kientopf, S. Raza, Simon Lansing, M. Günes","doi":"10.1109/PIMRC.2017.8292690","DOIUrl":"https://doi.org/10.1109/PIMRC.2017.8292690","url":null,"abstract":"The smart city is one of the prominent applications of the Internet of Things (IoT) and offers innovative services to its citizens. It can be viewed as segmented network in which different networks communicate via gateways through the global Internet. However, for the provision of services anywhere in a dense and heterogeneous IoT environment, this remote cloud infrastructure has limitations for scalability and is prone to long transmission latency. A decentralized architecture, such as fog computing, can efficiently minimize latency and support scalability by executing services to close proximity of objects. Physical proximity is not fixed and extends from gateways to dedicated service objects anywhere in the IoT. Therefore, an efficient platform is indispensable that improves network performance for scalability and low latency through service migration. We propose a service management platform under fog computing architecture that supports migrating services. The proposed service management platform reduces communication latency between service and object as compared to services on gateways or in remote cloud infrastructure.","PeriodicalId":397107,"journal":{"name":"2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115551335","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 : 2017-10-01DOI: 10.1109/PIMRC.2017.8292699
Qi Li, Yuanyuan Qiao, Wenhui Lin, Jie Yang
In recent years, the explosion of mobile Internet traffic data not only brings a high commercial value, but also helps us get a better understanding of human behavior. The study of human mobility which aims at revealing the general laws of human movement is the basis of many social, economic, and technological phenomena. It has received wide attention. But at present, the researches on the relationship between user offline and online behavior is very limited, only stop at discovering that users' current locations impact their application access behavior. This paper attempts to explore the relationship between human offline mobility and online browsing tendency from a more general point of view. To achieve this goal, we need to address several challenges including the effect of data size on the credibility of experimental results, urban functional regions identification, the modeling of user offline mobility and online browsing tendency. In this paper, our dataset consists of 7 days real mobile Internet traffic in a northern city of China, which covers 181873 users' traffic logs. In addition, we improve the existing urban functional regions identification method, and propose a new spatio-temporal-based user mobility model — user mobility image. Finally we analyze the correlation between user offline behavior and online browsing tendency. The result of this work paves the way for the identification of urban functional regions based on base station patterns. Compared with spatial-based mobility model, proposed user mobility image is more effective in illustrating user offline mobility, and shows high accuracy when predicting online browsing tendency.
{"title":"Understanding correlation between offline mobility and online browsing tendency in mobile network","authors":"Qi Li, Yuanyuan Qiao, Wenhui Lin, Jie Yang","doi":"10.1109/PIMRC.2017.8292699","DOIUrl":"https://doi.org/10.1109/PIMRC.2017.8292699","url":null,"abstract":"In recent years, the explosion of mobile Internet traffic data not only brings a high commercial value, but also helps us get a better understanding of human behavior. The study of human mobility which aims at revealing the general laws of human movement is the basis of many social, economic, and technological phenomena. It has received wide attention. But at present, the researches on the relationship between user offline and online behavior is very limited, only stop at discovering that users' current locations impact their application access behavior. This paper attempts to explore the relationship between human offline mobility and online browsing tendency from a more general point of view. To achieve this goal, we need to address several challenges including the effect of data size on the credibility of experimental results, urban functional regions identification, the modeling of user offline mobility and online browsing tendency. In this paper, our dataset consists of 7 days real mobile Internet traffic in a northern city of China, which covers 181873 users' traffic logs. In addition, we improve the existing urban functional regions identification method, and propose a new spatio-temporal-based user mobility model — user mobility image. Finally we analyze the correlation between user offline behavior and online browsing tendency. The result of this work paves the way for the identification of urban functional regions based on base station patterns. Compared with spatial-based mobility model, proposed user mobility image is more effective in illustrating user offline mobility, and shows high accuracy when predicting online browsing tendency.","PeriodicalId":397107,"journal":{"name":"2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"535 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116217705","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 : 2017-10-01DOI: 10.1109/PIMRC.2017.8292394
I. Yousaf, B. K. Lau
As the demand for connectivity and infotainment services increases in the automotive world, the need to measure and characterize the propagation channels inside vehicles also increases. In this work, a measurement study was performed to investigate the influence of RF cables on in-vehicle channels. It was found that, for the same transmit and receive antenna positions, the routing of the measurement cables can significantly affect the channel impulse response. This result points to the need for alternative strategies or solutions to obtain accurate and repeatable in-vehicle channel measurements.
{"title":"Impact of RF cables on the electromagnetic environment in vehicles","authors":"I. Yousaf, B. K. Lau","doi":"10.1109/PIMRC.2017.8292394","DOIUrl":"https://doi.org/10.1109/PIMRC.2017.8292394","url":null,"abstract":"As the demand for connectivity and infotainment services increases in the automotive world, the need to measure and characterize the propagation channels inside vehicles also increases. In this work, a measurement study was performed to investigate the influence of RF cables on in-vehicle channels. It was found that, for the same transmit and receive antenna positions, the routing of the measurement cables can significantly affect the channel impulse response. This result points to the need for alternative strategies or solutions to obtain accurate and repeatable in-vehicle channel measurements.","PeriodicalId":397107,"journal":{"name":"2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122906900","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 : 2017-10-01DOI: 10.1109/PIMRC.2017.8292660
P. Kryszkiewicz
Mobile network operators are required to support a number of users utilizing various Radio Access Technologies (RATs). While operating in a costly, licensed spectrum, the efficiency of its utilization is of crucial importance. This will promote newer RATs, supporting higher spectral efficiency. On the other hand, the quality of service for older RATs' users has to be maintained. This paper proposes a scheduling algorithm, dynamically distributing time-frequency resources between two or more RATs. Interference between RATs is modeled and considered while allocating resources. The algorithm is presented and validated by means of simulations for a coexistence of GSM and LTE systems. This solution is proved to be spectrally efficient in dynamic resource distribution, especially for traffic demand varying in time among different RATs.
{"title":"Multi-RAT scheduling for heterogeneous networks","authors":"P. Kryszkiewicz","doi":"10.1109/PIMRC.2017.8292660","DOIUrl":"https://doi.org/10.1109/PIMRC.2017.8292660","url":null,"abstract":"Mobile network operators are required to support a number of users utilizing various Radio Access Technologies (RATs). While operating in a costly, licensed spectrum, the efficiency of its utilization is of crucial importance. This will promote newer RATs, supporting higher spectral efficiency. On the other hand, the quality of service for older RATs' users has to be maintained. This paper proposes a scheduling algorithm, dynamically distributing time-frequency resources between two or more RATs. Interference between RATs is modeled and considered while allocating resources. The algorithm is presented and validated by means of simulations for a coexistence of GSM and LTE systems. This solution is proved to be spectrally efficient in dynamic resource distribution, especially for traffic demand varying in time among different RATs.","PeriodicalId":397107,"journal":{"name":"2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114601572","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 : 2017-10-01DOI: 10.1109/PIMRC.2017.8292430
Runfa Zhou, R. Cheng
We consider a two-user multiple access channel (MAC) with a wireless-powered relay-to-destination (RD) link, where the relay harvests energy from a radio frequency (RF) signal sent by a dedicated Power Beacon (PB). Each frame is divided into three phases. In the first phase, the relay harvests energy from an RF signal sent by a dedicated PB. The relay then receives information from user nodes in the second phase and forwards it to the destination in the third phase using its harvested energy. We investigate the sum rate maximization problem and characterize the capacity region of such a channel with the relay's maximum transmit power constraint, under both the amplify-and-forward (AF) and decode-and-forward (DF) relay strategies. Optimal solutions are obtained for both cases. It is interesting to find that the shape of the capacity region is still pentagonal with the wireless-powered relay. Finally, simulation results demonstrate the correctness of our analysis.
{"title":"Capacity regions of a MAC with a wireless-powered relay-to-destination link under different relay strategies","authors":"Runfa Zhou, R. Cheng","doi":"10.1109/PIMRC.2017.8292430","DOIUrl":"https://doi.org/10.1109/PIMRC.2017.8292430","url":null,"abstract":"We consider a two-user multiple access channel (MAC) with a wireless-powered relay-to-destination (RD) link, where the relay harvests energy from a radio frequency (RF) signal sent by a dedicated Power Beacon (PB). Each frame is divided into three phases. In the first phase, the relay harvests energy from an RF signal sent by a dedicated PB. The relay then receives information from user nodes in the second phase and forwards it to the destination in the third phase using its harvested energy. We investigate the sum rate maximization problem and characterize the capacity region of such a channel with the relay's maximum transmit power constraint, under both the amplify-and-forward (AF) and decode-and-forward (DF) relay strategies. Optimal solutions are obtained for both cases. It is interesting to find that the shape of the capacity region is still pentagonal with the wireless-powered relay. Finally, simulation results demonstrate the correctness of our analysis.","PeriodicalId":397107,"journal":{"name":"2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129596208","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 : 2017-10-01DOI: 10.1109/PIMRC.2017.8292314
Yasuhiro Takano, Hsuan-Jung Su
Multiuser (MU)-multiple-input multiple-output (MIMO) receivers often need to take iterative strategies to cancel multiuser-interference (MUI). Frequency domain turbo equalization is one of the most promising solutions to the MUI problem. It offers a reasonable trade-off between the receiver performance and the computational complexity by assuming cyclic prefix (CP)-transmission. Nevertheless, CP-transmission is not preferable for the battery life of user terminals. Therefore, this paper proposes a new frequency domain multiuser-detection (MUD) technique by extending the chained turbo equalization (CHATUE) to MU-MIMO systems. Simulation results verify that the proposed MU-MIMO CHATUE algorithm is a more reliable option to improve the spectral- and/or energy-efficiency by eliminating the necessity of CP-transmission than by shortening the training sequences or puncturing the coded data bits.
{"title":"Performance of frequency domain multiuser-MIMO turbo equalization without cyclic prefix","authors":"Yasuhiro Takano, Hsuan-Jung Su","doi":"10.1109/PIMRC.2017.8292314","DOIUrl":"https://doi.org/10.1109/PIMRC.2017.8292314","url":null,"abstract":"Multiuser (MU)-multiple-input multiple-output (MIMO) receivers often need to take iterative strategies to cancel multiuser-interference (MUI). Frequency domain turbo equalization is one of the most promising solutions to the MUI problem. It offers a reasonable trade-off between the receiver performance and the computational complexity by assuming cyclic prefix (CP)-transmission. Nevertheless, CP-transmission is not preferable for the battery life of user terminals. Therefore, this paper proposes a new frequency domain multiuser-detection (MUD) technique by extending the chained turbo equalization (CHATUE) to MU-MIMO systems. Simulation results verify that the proposed MU-MIMO CHATUE algorithm is a more reliable option to improve the spectral- and/or energy-efficiency by eliminating the necessity of CP-transmission than by shortening the training sequences or puncturing the coded data bits.","PeriodicalId":397107,"journal":{"name":"2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128567806","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 : 2017-10-01DOI: 10.1109/PIMRC.2017.8292306
Jianjun Zhang, Fusheng Zhu, Yongming Huang, Luxi Yang
This paper exploits the potential of large antenna arrays to develop a secure millimeter wave (mmwave) transmission scheme. To reduce the peak-to-average power ratio (PAPR), the idea of constant envelope precoding (CEP) is introduced to improve the power efficiency of power amplifiers. In the CEP scheme, only phase variation of each antenna is used to form the desired signal at the target receiver, while the sum power of noise-free signals received by all eavesdroppers is minimized for secure transmission. A nonconvex optimization problem is formulated with equality and unit modulus constraints. To tackle the nonconvex constraints, the augmented Lagrangian penalty method is employed to address the challenging problem. An efficient iterative algorithm is further proposed to tackle the problem of precoder design. Simulation results confirm the effectiveness and superiority of the proposed CEP secure transmission scheme.
{"title":"Constant envelope precoding for secure millimeter-wave wireless communication","authors":"Jianjun Zhang, Fusheng Zhu, Yongming Huang, Luxi Yang","doi":"10.1109/PIMRC.2017.8292306","DOIUrl":"https://doi.org/10.1109/PIMRC.2017.8292306","url":null,"abstract":"This paper exploits the potential of large antenna arrays to develop a secure millimeter wave (mmwave) transmission scheme. To reduce the peak-to-average power ratio (PAPR), the idea of constant envelope precoding (CEP) is introduced to improve the power efficiency of power amplifiers. In the CEP scheme, only phase variation of each antenna is used to form the desired signal at the target receiver, while the sum power of noise-free signals received by all eavesdroppers is minimized for secure transmission. A nonconvex optimization problem is formulated with equality and unit modulus constraints. To tackle the nonconvex constraints, the augmented Lagrangian penalty method is employed to address the challenging problem. An efficient iterative algorithm is further proposed to tackle the problem of precoder design. Simulation results confirm the effectiveness and superiority of the proposed CEP secure transmission scheme.","PeriodicalId":397107,"journal":{"name":"2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128643321","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：