Pub Date : 2015-09-01DOI: 10.1109/CAMAD.2015.7390515
E. Gelenbe, Yasin Murat Kadioglu
We present a performance model for an energy harvesting wireless sensor node in which data gathering and harvesting are slow random processes as compared to fast wireless communications. We assume that the system will use stored energy when collecting data in standby, and that energy will leak from capacitors and batteries. In the presence of these imperfections we derive the system's packet transmission capacity when its packet storage buffer and its energy storage unit have a finite capacity that may lead to both data packet overflows, and the loss of incoming energy in addition to standby losses. We also consider an infinite capacity model which operates in the presence of transmission errors due to channel noise and interference.
{"title":"Energy loss through standby and leakage in energy harvesting wireless sensors","authors":"E. Gelenbe, Yasin Murat Kadioglu","doi":"10.1109/CAMAD.2015.7390515","DOIUrl":"https://doi.org/10.1109/CAMAD.2015.7390515","url":null,"abstract":"We present a performance model for an energy harvesting wireless sensor node in which data gathering and harvesting are slow random processes as compared to fast wireless communications. We assume that the system will use stored energy when collecting data in standby, and that energy will leak from capacitors and batteries. In the presence of these imperfections we derive the system's packet transmission capacity when its packet storage buffer and its energy storage unit have a finite capacity that may lead to both data packet overflows, and the loss of incoming energy in addition to standby losses. We also consider an infinite capacity model which operates in the presence of transmission errors due to channel noise and interference.","PeriodicalId":370856,"journal":{"name":"2015 IEEE 20th International Workshop on Computer Aided Modelling and Design of Communication Links and Networks (CAMAD)","volume":"210 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115767287","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 : 2015-09-01DOI: 10.1109/CAMAD.2015.7390522
Albrecht Wolf, Maximilian Matthé, Andreas Festag, G. Fettweis
The extension of Decode-and-Forward (DF) relaying by lossy forwarding has the potential to ensure a reliable multi-hop message transport in wireless mesh networks. Unlike in conventional DF relaying, with lossy forwarding a relay forwards a message regardless whether errors have been detected after decoding. At the destination, a proper joint decoding technique exploits the high correlation of messages received via different network paths. According to the Slepian-Wolf correlated source coding theorem a performance improvement compared with the conventional DF relaying can be expected. The performance can be optimized by a power allocation scheme that distributes the total transmit power budget between source and relay nodes. This paper analyzes the outage probability (OP) based on the Slepian-Wolf source correlation theorem for a system with two relays and designs a power allocation scheme to minimize the OP. The proposed scheme reduces the OP by up to 1.5 orders of magnitude compared to the reference case of equal power allocation. We also compare the performance gain of a system with two relays against the case with a single relay for the same total transmit power budget. Results show a reduction of the OP of at least one and up to two orders of magnitude.
{"title":"Outage based power allocation for a lossy forwarding two-relaying system","authors":"Albrecht Wolf, Maximilian Matthé, Andreas Festag, G. Fettweis","doi":"10.1109/CAMAD.2015.7390522","DOIUrl":"https://doi.org/10.1109/CAMAD.2015.7390522","url":null,"abstract":"The extension of Decode-and-Forward (DF) relaying by lossy forwarding has the potential to ensure a reliable multi-hop message transport in wireless mesh networks. Unlike in conventional DF relaying, with lossy forwarding a relay forwards a message regardless whether errors have been detected after decoding. At the destination, a proper joint decoding technique exploits the high correlation of messages received via different network paths. According to the Slepian-Wolf correlated source coding theorem a performance improvement compared with the conventional DF relaying can be expected. The performance can be optimized by a power allocation scheme that distributes the total transmit power budget between source and relay nodes. This paper analyzes the outage probability (OP) based on the Slepian-Wolf source correlation theorem for a system with two relays and designs a power allocation scheme to minimize the OP. The proposed scheme reduces the OP by up to 1.5 orders of magnitude compared to the reference case of equal power allocation. We also compare the performance gain of a system with two relays against the case with a single relay for the same total transmit power budget. Results show a reduction of the OP of at least one and up to two orders of magnitude.","PeriodicalId":370856,"journal":{"name":"2015 IEEE 20th International Workshop on Computer Aided Modelling and Design of Communication Links and Networks (CAMAD)","volume":"891 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123250425","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 : 2015-09-01DOI: 10.1109/CAMAD.2015.7390532
M. R. Tabany, C. Guy
Femtocells have been standardized by the Third-Generation Partnership Project (3GPP) technical specifications to be placed indoors and in the cell edge. Femtocells extend the coverage area and fulfil the upcoming demands of higher data rates. However, as a result of the mass deployment of femtocells, users experience extra delay and unnecessary handovers. This can severely influence the Quality of Service (QoS) of delay-sensitive Real-Time (RT) applications such as Voice over Long Term Evolution (VoLTE). 3GPP LTE/LTE-A wireless networks aim to ensure seamless mobility and fast handover support to RT and non-RT application services under high mobility. Mobility prediction is an effective technique to identify a future evolved and Home NodeB (eNB/HeNB) in advance, improve overall network QoS and satisfy end-user experience. This study investigates the role of mobility prediction in reducing VoLTE end-to-end delay and handover delay under different User Equipment (UE) velocities in mixed femtocell and macrocell environments. A mobility prediction scheme based on the user's path and Reference Signal Received Power and Reference Signal Received Quality (RSRP/RSRQ) measurements with mixed RT and non-RT traffic is proposed and then evaluated using a novel network model. The simulation results reveal that the proposed scheme has clearly reduced handover delay by 29%, kept VoLTE end-to-end delay within the ITU-T standard recommendations and maintained the desired QoS.
{"title":"A mobility prediction scheme of LTE/LTE-A femtocells under different velocity scenarios","authors":"M. R. Tabany, C. Guy","doi":"10.1109/CAMAD.2015.7390532","DOIUrl":"https://doi.org/10.1109/CAMAD.2015.7390532","url":null,"abstract":"Femtocells have been standardized by the Third-Generation Partnership Project (3GPP) technical specifications to be placed indoors and in the cell edge. Femtocells extend the coverage area and fulfil the upcoming demands of higher data rates. However, as a result of the mass deployment of femtocells, users experience extra delay and unnecessary handovers. This can severely influence the Quality of Service (QoS) of delay-sensitive Real-Time (RT) applications such as Voice over Long Term Evolution (VoLTE). 3GPP LTE/LTE-A wireless networks aim to ensure seamless mobility and fast handover support to RT and non-RT application services under high mobility. Mobility prediction is an effective technique to identify a future evolved and Home NodeB (eNB/HeNB) in advance, improve overall network QoS and satisfy end-user experience. This study investigates the role of mobility prediction in reducing VoLTE end-to-end delay and handover delay under different User Equipment (UE) velocities in mixed femtocell and macrocell environments. A mobility prediction scheme based on the user's path and Reference Signal Received Power and Reference Signal Received Quality (RSRP/RSRQ) measurements with mixed RT and non-RT traffic is proposed and then evaluated using a novel network model. The simulation results reveal that the proposed scheme has clearly reduced handover delay by 29%, kept VoLTE end-to-end delay within the ITU-T standard recommendations and maintained the desired QoS.","PeriodicalId":370856,"journal":{"name":"2015 IEEE 20th International Workshop on Computer Aided Modelling and Design of Communication Links and Networks (CAMAD)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131502017","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 : 2015-09-01DOI: 10.1109/CAMAD.2015.7390497
Z. E. Ankarali, A. Demir, M. Qaraqe, Q. Abbasi, E. Serpedin, H. Arslan, R. Gitlin
Wireless communications are increasingly important in health-care applications, particularly in those that use implantable medical devices (IMDs). Such systems have many advantages in providing remote healthcare in terms of monitoring, treatment and prediction for critical cases. However, the existence of malicious adversaries, referred to as nodes, which attempt to control implanted devices, constitutes a critical risk for patients. Such adversaries may perform dangerous attacks by sending malicious commands to the IMD, and any weakness in the device authentication mechanism may result in serious problems including death. In this paper we present a physical layer (PHY) authentication technique for IMDs that does not use existing methods of cryptology. In addition to ensuring authentication, the proposed technique also provides advantages in terms of decreasing processing complexity of IMDs and enhances overall communications performance.
{"title":"Physical layer security for wireless implantable medical devices","authors":"Z. E. Ankarali, A. Demir, M. Qaraqe, Q. Abbasi, E. Serpedin, H. Arslan, R. Gitlin","doi":"10.1109/CAMAD.2015.7390497","DOIUrl":"https://doi.org/10.1109/CAMAD.2015.7390497","url":null,"abstract":"Wireless communications are increasingly important in health-care applications, particularly in those that use implantable medical devices (IMDs). Such systems have many advantages in providing remote healthcare in terms of monitoring, treatment and prediction for critical cases. However, the existence of malicious adversaries, referred to as nodes, which attempt to control implanted devices, constitutes a critical risk for patients. Such adversaries may perform dangerous attacks by sending malicious commands to the IMD, and any weakness in the device authentication mechanism may result in serious problems including death. In this paper we present a physical layer (PHY) authentication technique for IMDs that does not use existing methods of cryptology. In addition to ensuring authentication, the proposed technique also provides advantages in terms of decreasing processing complexity of IMDs and enhances overall communications performance.","PeriodicalId":370856,"journal":{"name":"2015 IEEE 20th International Workshop on Computer Aided Modelling and Design of Communication Links and Networks (CAMAD)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131044795","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 : 2015-09-01DOI: 10.1109/CAMAD.2015.7390523
J. Hou, Chuyi Qian, N. Yi, Y. Ma
In this paper, a complexity-reduced error propagation mitigation algorithm is presented by exploiting source-relay (S-R) correlation information with the limited channel feed-forward bits from the relay node to the destination node. The proposed idea employs the limited channel feed-forward bits as the S-R correlation information indicator and uses it for the iterative decoding at the destination node. Comparing with the conventional threshold-based S-R correlation estimation algorithm, the proposed algorithm can provide close bit error rate performance and omit the iterative S-R correlation estimation process at the destination node. Moreover, the results also show that the proposed algorithm outperforms some of the existing relaying protocols up to 1 dB gain.
{"title":"Error propagation mitigation by exploiting source-relay correlation with limited channel feed-forward bits","authors":"J. Hou, Chuyi Qian, N. Yi, Y. Ma","doi":"10.1109/CAMAD.2015.7390523","DOIUrl":"https://doi.org/10.1109/CAMAD.2015.7390523","url":null,"abstract":"In this paper, a complexity-reduced error propagation mitigation algorithm is presented by exploiting source-relay (S-R) correlation information with the limited channel feed-forward bits from the relay node to the destination node. The proposed idea employs the limited channel feed-forward bits as the S-R correlation information indicator and uses it for the iterative decoding at the destination node. Comparing with the conventional threshold-based S-R correlation estimation algorithm, the proposed algorithm can provide close bit error rate performance and omit the iterative S-R correlation estimation process at the destination node. Moreover, the results also show that the proposed algorithm outperforms some of the existing relaying protocols up to 1 dB gain.","PeriodicalId":370856,"journal":{"name":"2015 IEEE 20th International Workshop on Computer Aided Modelling and Design of Communication Links and Networks (CAMAD)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129038929","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 : 2015-07-28DOI: 10.1109/CAMAD.2015.7390485
Mingbo Dai, B. Clerckx, D. Gesbert, G. Caire
In a multiuser MIMO broadcast channel, the rate performance is affected by the multiuser interference when the Channel State Information at the Transmitter (CSIT) is imperfect. To tackle the interference problem, a Rate-Splitting (RS) approach has been proposed recently, which splits one user's message into a common and a private part, and superimposes the common message on top of the private messages. The common message is drawn from a public codebook and should be decoded by all users. In this paper, we propose a novel and general framework, denoted as Hierarchical Rate Splitting (HRS), that is particularly suited to FDD massive MIMO systems. HRS simultaneously transmits private messages intended to each user and two kinds of common messages that can be decoded by all users and by a subset of users, respectively. We analyse the asymptotic sum rate of HRS under imperfect CSIT. A closed-form power allocation is derived which provides insights into the effects of system parameters. Finally, simulation results validate the significant sum rate gain of HRS over various baselines1.
{"title":"A hierarchical rate splitting strategy for FDD massive MIMO under imperfect CSIT","authors":"Mingbo Dai, B. Clerckx, D. Gesbert, G. Caire","doi":"10.1109/CAMAD.2015.7390485","DOIUrl":"https://doi.org/10.1109/CAMAD.2015.7390485","url":null,"abstract":"In a multiuser MIMO broadcast channel, the rate performance is affected by the multiuser interference when the Channel State Information at the Transmitter (CSIT) is imperfect. To tackle the interference problem, a Rate-Splitting (RS) approach has been proposed recently, which splits one user's message into a common and a private part, and superimposes the common message on top of the private messages. The common message is drawn from a public codebook and should be decoded by all users. In this paper, we propose a novel and general framework, denoted as Hierarchical Rate Splitting (HRS), that is particularly suited to FDD massive MIMO systems. HRS simultaneously transmits private messages intended to each user and two kinds of common messages that can be decoded by all users and by a subset of users, respectively. We analyse the asymptotic sum rate of HRS under imperfect CSIT. A closed-form power allocation is derived which provides insights into the effects of system parameters. Finally, simulation results validate the significant sum rate gain of HRS over various baselines1.","PeriodicalId":370856,"journal":{"name":"2015 IEEE 20th International Workshop on Computer Aided Modelling and Design of Communication Links and Networks (CAMAD)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127084416","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 : 2015-01-28DOI: 10.1109/CAMAD.2015.7390492
Arsalan Saeed, E. Katranaras, A. Zoha, A. Imran, M. Imran, M. Dianati
This paper investigates the downlink resource allocation problem in Orthogonal Frequency Division Multiple Access (OFDMA) Heterogeneous Networks (HetNets) consisting of macrocells and small cells sharing the same frequency band. The focus of this study is to devise an energy efficient scheme that allows shared spectrum access to small cells, while ensuring a certain level of quality of service for the macro cell users. It further enable us to minimize the overall energy consumption by switching the underutilized small cells to sleep mode. To devise such a mechanism, we have used a combination of linear binary integer programming and progressive analysis based heuristic algorithm. We evaluated our proposed solution by comparing the macrocell served users performance against Reuse 1 case. Moreover, we provide an analytical comparison of the network power consumption with and without the sleep mode capabilities. It has been shown that our proposed algorithm not only reduces the overall network energy consumption but also minimizes the interference caused by smalls cells to macrocell served users.
{"title":"Energy efficient resource allocation for 5G Heterogeneous Networks","authors":"Arsalan Saeed, E. Katranaras, A. Zoha, A. Imran, M. Imran, M. Dianati","doi":"10.1109/CAMAD.2015.7390492","DOIUrl":"https://doi.org/10.1109/CAMAD.2015.7390492","url":null,"abstract":"This paper investigates the downlink resource allocation problem in Orthogonal Frequency Division Multiple Access (OFDMA) Heterogeneous Networks (HetNets) consisting of macrocells and small cells sharing the same frequency band. The focus of this study is to devise an energy efficient scheme that allows shared spectrum access to small cells, while ensuring a certain level of quality of service for the macro cell users. It further enable us to minimize the overall energy consumption by switching the underutilized small cells to sleep mode. To devise such a mechanism, we have used a combination of linear binary integer programming and progressive analysis based heuristic algorithm. We evaluated our proposed solution by comparing the macrocell served users performance against Reuse 1 case. Moreover, we provide an analytical comparison of the network power consumption with and without the sleep mode capabilities. It has been shown that our proposed algorithm not only reduces the overall network energy consumption but also minimizes the interference caused by smalls cells to macrocell served users.","PeriodicalId":370856,"journal":{"name":"2015 IEEE 20th International Workshop on Computer Aided Modelling and Design of Communication Links and Networks (CAMAD)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130722565","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 : 1900-01-01DOI: 10.1109/CAMAD.2015.7390475
Chang He, Lie-liang Yang, P. Xiao, M. Imran
In this contribution we propose and investigate the performance of Direct Sequence Code Division Multiple Access (DS-CDMA) based VLC system using M-ary orthogonal modulation under Additive White Gaussian Noise (AWGN) channel. Various types of spreading code sequences are considered, including the modified binary sequences previously used in wireless CDMA systems and the optical orthogonal code (OOC) which is widely employed in the optical domain. For each code set correlation property is studied for the purpose of predicting whether its corresponding multiple access interference (MAI) is tolerable. Furthermore, sophisticated code designs are proposed to improve the system performance while reducing the overall MAI effect under specified channel conditions. The numerical results show that the performance of optical wireless networks can be enhanced with the proposed spreading code design.
{"title":"DS-CDMA assisted visible light communications systems","authors":"Chang He, Lie-liang Yang, P. Xiao, M. Imran","doi":"10.1109/CAMAD.2015.7390475","DOIUrl":"https://doi.org/10.1109/CAMAD.2015.7390475","url":null,"abstract":"In this contribution we propose and investigate the performance of Direct Sequence Code Division Multiple Access (DS-CDMA) based VLC system using M-ary orthogonal modulation under Additive White Gaussian Noise (AWGN) channel. Various types of spreading code sequences are considered, including the modified binary sequences previously used in wireless CDMA systems and the optical orthogonal code (OOC) which is widely employed in the optical domain. For each code set correlation property is studied for the purpose of predicting whether its corresponding multiple access interference (MAI) is tolerable. Furthermore, sophisticated code designs are proposed to improve the system performance while reducing the overall MAI effect under specified channel conditions. The numerical results show that the performance of optical wireless networks can be enhanced with the proposed spreading code design.","PeriodicalId":370856,"journal":{"name":"2015 IEEE 20th International Workshop on Computer Aided Modelling and Design of Communication Links and Networks (CAMAD)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125160303","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 : 1900-01-01DOI: 10.1109/CAMAD.2015.7390477
Kaige Yang, C. Masouros
This paper explores the optimal number of antennas within generalized spatial modulation (GSM) scheme with single and multiple radio frequency (RF) chains. The main focus of our work is on the number of total transmit antennas and active transmit antennas as per the GSM transmission, that optimizes the system's power efficiency. Accordingly, the bandwidth efficiency of the transmission and receiver complexity are analytically calculated. The performance of the multiple-RF-chain GSM scheme is compared with SM and GSM. Moreover, Monte Carlo simulations are carried out to analyze and verify the analysis of power efficiency as a function of the number of transmit antennas.
{"title":"On the optimal number of antennas for power efficient generalized spatial modulation","authors":"Kaige Yang, C. Masouros","doi":"10.1109/CAMAD.2015.7390477","DOIUrl":"https://doi.org/10.1109/CAMAD.2015.7390477","url":null,"abstract":"This paper explores the optimal number of antennas within generalized spatial modulation (GSM) scheme with single and multiple radio frequency (RF) chains. The main focus of our work is on the number of total transmit antennas and active transmit antennas as per the GSM transmission, that optimizes the system's power efficiency. Accordingly, the bandwidth efficiency of the transmission and receiver complexity are analytically calculated. The performance of the multiple-RF-chain GSM scheme is compared with SM and GSM. Moreover, Monte Carlo simulations are carried out to analyze and verify the analysis of power efficiency as a function of the number of transmit antennas.","PeriodicalId":370856,"journal":{"name":"2015 IEEE 20th International Workshop on Computer Aided Modelling and Design of Communication Links and Networks (CAMAD)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126979111","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 : 1900-01-01DOI: 10.1109/CAMAD.2015.7390479
A. Zafar, M. Imran, P. Xiao, Aijun Cao, Yonghong Gao
Several techniques such as carrier aggregation (CA) and cognitive radio (CR) have been proposed to achieve high data rates to meet the demand of future wireless communication systems. Those techniques pose a strict adjacent channel interference (ACI) requirement. However, currently employed orthogonal frequency division multiplexing (OFDM) systems suffer from significant spectrum leakage and require large guard bands to avoid ACI. To tackle this problem, there is a need to explore new suitable multicarrier modulation (MCM) schemes that can exhibit lower ACI. In this paper, we compare the conventional OFDM with the OFDM with transmit windowing (WOFDM) and Filter Bank based Multicarrier (FBMC) system to explore potential candidates to fulfil the ACI requirement. Those MCM schemes are compared in terms of better spectral containment, throughput, bit error rate (BER) performance and complexity.
{"title":"Performance evaluation and comparison of different multicarrier modulation schemes","authors":"A. Zafar, M. Imran, P. Xiao, Aijun Cao, Yonghong Gao","doi":"10.1109/CAMAD.2015.7390479","DOIUrl":"https://doi.org/10.1109/CAMAD.2015.7390479","url":null,"abstract":"Several techniques such as carrier aggregation (CA) and cognitive radio (CR) have been proposed to achieve high data rates to meet the demand of future wireless communication systems. Those techniques pose a strict adjacent channel interference (ACI) requirement. However, currently employed orthogonal frequency division multiplexing (OFDM) systems suffer from significant spectrum leakage and require large guard bands to avoid ACI. To tackle this problem, there is a need to explore new suitable multicarrier modulation (MCM) schemes that can exhibit lower ACI. In this paper, we compare the conventional OFDM with the OFDM with transmit windowing (WOFDM) and Filter Bank based Multicarrier (FBMC) system to explore potential candidates to fulfil the ACI requirement. Those MCM schemes are compared in terms of better spectral containment, throughput, bit error rate (BER) performance and complexity.","PeriodicalId":370856,"journal":{"name":"2015 IEEE 20th International Workshop on Computer Aided Modelling and Design of Communication Links and Networks (CAMAD)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125333432","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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