Pub Date : 2015-12-03DOI: 10.1109/PIMRC.2015.7343696
Zehua Wang, Xiaodong Xu, Rao Zhang
Fractional Frequency Reuse (FFR) has been adopted in current two-tier Heterogeneous Networks (HetNet) with femtocells deployed in the presence of an overlaid macrocell. This technology would effectively reduce the inter-cell interference (ICI), from both co-tier and cross-tier, and thus achieve higher system throughput. Cell partitioning is an important parameter in FFR scheme. In this article, a Redistributed FFR (RFFR) scheme is proposed for HetNet and the system throughput is analyzed from the point of macrocell partitioning. We apply a Fluid Model to approximate the Signal to Interference Ratio and convert the capacity maximum problem into a convex optimization. The optimal cell partitioning percentage is calculated. Simulation results show that the optimal reuse partitioning of proposed RFFR for the HetNet is 0.79. The solution has reference value for the other frequency reuse based networks.
{"title":"Optimal macrocell partitioning for redistributed fractional frequency reuse in heterogeneous networks","authors":"Zehua Wang, Xiaodong Xu, Rao Zhang","doi":"10.1109/PIMRC.2015.7343696","DOIUrl":"https://doi.org/10.1109/PIMRC.2015.7343696","url":null,"abstract":"Fractional Frequency Reuse (FFR) has been adopted in current two-tier Heterogeneous Networks (HetNet) with femtocells deployed in the presence of an overlaid macrocell. This technology would effectively reduce the inter-cell interference (ICI), from both co-tier and cross-tier, and thus achieve higher system throughput. Cell partitioning is an important parameter in FFR scheme. In this article, a Redistributed FFR (RFFR) scheme is proposed for HetNet and the system throughput is analyzed from the point of macrocell partitioning. We apply a Fluid Model to approximate the Signal to Interference Ratio and convert the capacity maximum problem into a convex optimization. The optimal cell partitioning percentage is calculated. Simulation results show that the optimal reuse partitioning of proposed RFFR for the HetNet is 0.79. The solution has reference value for the other frequency reuse based networks.","PeriodicalId":274734,"journal":{"name":"2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132589409","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 : 2015-12-03DOI: 10.1109/PIMRC.2015.7343610
Tao Tao, F. Han, Yong Liu
In this paper, we focus on the deployment of LTE technologies coexisting with Wi-Fi technologies in the unlicensed spectrum 5 GHz. Listen before talk (LBT) functionality is required in unlicensed band in order to ensure the fair coexistence among different operators. We propose a LBT enhancement algorithm with contention window size adaptation for LTE with Licensed-Assisted Access (LTE-LAA) in order to achieve not only channel access fairness but also the QoS fairness. Simulation results show that LTE-LAA with LBT mechanism does not impact Wi-Fi services more than an additional Wi-Fi network. Compared with the fixed LBT mechanism, our proposed LBT algorithm could achieve around 4% and 6% LTE-LAA performance gain in user perceived throughput (UPT) and transmission latency, respectively. And, more than 25% Wi-Fi transmission latency gain can be also achieved. Furthermore, the simulation result shows the advantage of proposed LBT algorithm over original LBT procedure in the case of two LTE operators coexistence.
{"title":"Enhanced LBT algorithm for LTE-LAA in unlicensed band","authors":"Tao Tao, F. Han, Yong Liu","doi":"10.1109/PIMRC.2015.7343610","DOIUrl":"https://doi.org/10.1109/PIMRC.2015.7343610","url":null,"abstract":"In this paper, we focus on the deployment of LTE technologies coexisting with Wi-Fi technologies in the unlicensed spectrum 5 GHz. Listen before talk (LBT) functionality is required in unlicensed band in order to ensure the fair coexistence among different operators. We propose a LBT enhancement algorithm with contention window size adaptation for LTE with Licensed-Assisted Access (LTE-LAA) in order to achieve not only channel access fairness but also the QoS fairness. Simulation results show that LTE-LAA with LBT mechanism does not impact Wi-Fi services more than an additional Wi-Fi network. Compared with the fixed LBT mechanism, our proposed LBT algorithm could achieve around 4% and 6% LTE-LAA performance gain in user perceived throughput (UPT) and transmission latency, respectively. And, more than 25% Wi-Fi transmission latency gain can be also achieved. Furthermore, the simulation result shows the advantage of proposed LBT algorithm over original LBT procedure in the case of two LTE operators coexistence.","PeriodicalId":274734,"journal":{"name":"2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132767187","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 : 2015-12-03DOI: 10.1109/PIMRC.2015.7343485
P. Ling, G. Papen, T. Javidi
It is widely believed that future small-cell unmanaged wireless networks will be dominated by interference caused by packet collisions and not by signal-to-noise issues. In such a network, a large fraction of the collisions are caused by hidden terminals. Here we present the design and evaluation of RoXOR, a system that can effectively combat random collisions caused by bursty traffic from hidden terminals. RoXOR relies on jointly using both the amount of redundancy and the structure of the redundancy, as expressed by a code. Using these degrees of freedom, we design and experimentally evaluate an iterative rateless code that with high probability achieves better performance as compared to methods such as ZigZag. The mean improvement, as measured by the per packet delay, is 12-18% for values typically used for a 802.11× protocol.
{"title":"RoXOR: Re-thinking retransmissions in WiFi","authors":"P. Ling, G. Papen, T. Javidi","doi":"10.1109/PIMRC.2015.7343485","DOIUrl":"https://doi.org/10.1109/PIMRC.2015.7343485","url":null,"abstract":"It is widely believed that future small-cell unmanaged wireless networks will be dominated by interference caused by packet collisions and not by signal-to-noise issues. In such a network, a large fraction of the collisions are caused by hidden terminals. Here we present the design and evaluation of RoXOR, a system that can effectively combat random collisions caused by bursty traffic from hidden terminals. RoXOR relies on jointly using both the amount of redundancy and the structure of the redundancy, as expressed by a code. Using these degrees of freedom, we design and experimentally evaluate an iterative rateless code that with high probability achieves better performance as compared to methods such as ZigZag. The mean improvement, as measured by the per packet delay, is 12-18% for values typically used for a 802.11× protocol.","PeriodicalId":274734,"journal":{"name":"2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115338098","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 : 2015-12-03DOI: 10.1109/PIMRC.2015.7343666
Peter Ökvist, H. Asplund, A. Simonsson, B. Halvarsson, J. Medbø, N. Seifi
This paper presents coverage and penetration loss measurements in an urban environment at 15 GHz to provide insight into the design and deployment of future 5G systems in higher frequency bands. The measurements are performed using a 5G radio access prototype including two transmission points (TPs) and a mobile terminal over a 200 MHz bandwidth. The TPs and the mobile terminal each consists of multiple antennas, enabling spatial multiplexing of multiple data streams. Coverage measurements are performed for both outdoor and outdoor-to-indoor scenarios. Penetration losses are measured for human body, normal and coated windows, a metallic white board, and a concrete pillar. Outdoor microcellular coverage in line-of-sight (LOS) and lightly shadowed areas is shown to be possible with similar antenna directivities as in the existing cellular networks. Transitions into non-line-of-sight (NLOS) bring additional losses in the order of 20 dB, thereby making the NLOS coverage challenging. Outdoor-to-indoor coverage seems to be limited to areas that are in almost LOS with the outdoor TP. Moreover, the penetration loss of indoor blocking objects seems to further restrict the indoor coverage. Potentials of beamforming as a means to improve the coverage are also evaluated via simulations.
{"title":"15 GHz propagation properties assessed with 5G radio access prototype","authors":"Peter Ökvist, H. Asplund, A. Simonsson, B. Halvarsson, J. Medbø, N. Seifi","doi":"10.1109/PIMRC.2015.7343666","DOIUrl":"https://doi.org/10.1109/PIMRC.2015.7343666","url":null,"abstract":"This paper presents coverage and penetration loss measurements in an urban environment at 15 GHz to provide insight into the design and deployment of future 5G systems in higher frequency bands. The measurements are performed using a 5G radio access prototype including two transmission points (TPs) and a mobile terminal over a 200 MHz bandwidth. The TPs and the mobile terminal each consists of multiple antennas, enabling spatial multiplexing of multiple data streams. Coverage measurements are performed for both outdoor and outdoor-to-indoor scenarios. Penetration losses are measured for human body, normal and coated windows, a metallic white board, and a concrete pillar. Outdoor microcellular coverage in line-of-sight (LOS) and lightly shadowed areas is shown to be possible with similar antenna directivities as in the existing cellular networks. Transitions into non-line-of-sight (NLOS) bring additional losses in the order of 20 dB, thereby making the NLOS coverage challenging. Outdoor-to-indoor coverage seems to be limited to areas that are in almost LOS with the outdoor TP. Moreover, the penetration loss of indoor blocking objects seems to further restrict the indoor coverage. Potentials of beamforming as a means to improve the coverage are also evaluated via simulations.","PeriodicalId":274734,"journal":{"name":"2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"271 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115665476","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 : 2015-12-03DOI: 10.1109/PIMRC.2015.7343538
Leila Melki, S. Najeh, Hichem Besbes
Device-to-Device (D2D) communications provide the means to users of cellular networks for reusing licensed spectrum by creating a direct link between two devices. However, enabling D2D communications in a cellular network presents a challenge in resource allocation because of the potential severe interference it may cause to the cellular network due to the reuse of the spectrum with the cellular users. Such interference can be prevented otherwise diminish if radio resource assigned intelligently with the coordination from the eNodeB (eNB). In this paper, we analyze the resource allocation problem in a multi cell environment and we propose a new scheme for Intra-Inter-Cell D2D communication when both Intra Cell D2D (Intra-cell-D2D) and Inter Cell D2D communication(Inter-cell-D2D) are present in the system.
{"title":"Radio resource allocation scheme for intra-inter-cell D2D communications in LTE-A","authors":"Leila Melki, S. Najeh, Hichem Besbes","doi":"10.1109/PIMRC.2015.7343538","DOIUrl":"https://doi.org/10.1109/PIMRC.2015.7343538","url":null,"abstract":"Device-to-Device (D2D) communications provide the means to users of cellular networks for reusing licensed spectrum by creating a direct link between two devices. However, enabling D2D communications in a cellular network presents a challenge in resource allocation because of the potential severe interference it may cause to the cellular network due to the reuse of the spectrum with the cellular users. Such interference can be prevented otherwise diminish if radio resource assigned intelligently with the coordination from the eNodeB (eNB). In this paper, we analyze the resource allocation problem in a multi cell environment and we propose a new scheme for Intra-Inter-Cell D2D communication when both Intra Cell D2D (Intra-cell-D2D) and Inter Cell D2D communication(Inter-cell-D2D) are present in the system.","PeriodicalId":274734,"journal":{"name":"2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124536538","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 : 2015-12-03DOI: 10.1109/PIMRC.2015.7343440
Sha Hu, F. Rusek
We consider the problem of designing demodulators for channels with memory that use reduced-size trellis descriptions for the received signal. We assume an overall iterative receiver, and for the parts of the signal not covered by the trellis description, we use interference cancellation based on the soft information provided by the outer decoder. In order to reach a trellis description, a linear filter is applied as front-end to compress the signal structure into a small trellis. This process requires three parameters to be designed: (i) the front-end filter, (ii) the feedback filter through which the interference cancellation is done, and (iii) a target response which specifies the trellis. While (i) and (ii) can be found in closed form, a numerical search is required for (iii). The numerical search is, however, very efficient and stable. Demodulators of this form have been studied before under the name channel shortening (CS), but the interplay between CS and interference cancellation has not been adequately addressed in the literature.
{"title":"On the design of reduced state demodulators with interference cancellation for iterative receivers","authors":"Sha Hu, F. Rusek","doi":"10.1109/PIMRC.2015.7343440","DOIUrl":"https://doi.org/10.1109/PIMRC.2015.7343440","url":null,"abstract":"We consider the problem of designing demodulators for channels with memory that use reduced-size trellis descriptions for the received signal. We assume an overall iterative receiver, and for the parts of the signal not covered by the trellis description, we use interference cancellation based on the soft information provided by the outer decoder. In order to reach a trellis description, a linear filter is applied as front-end to compress the signal structure into a small trellis. This process requires three parameters to be designed: (i) the front-end filter, (ii) the feedback filter through which the interference cancellation is done, and (iii) a target response which specifies the trellis. While (i) and (ii) can be found in closed form, a numerical search is required for (iii). The numerical search is, however, very efficient and stable. Demodulators of this form have been studied before under the name channel shortening (CS), but the interplay between CS and interference cancellation has not been adequately addressed in the literature.","PeriodicalId":274734,"journal":{"name":"2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124556524","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 : 2015-12-03DOI: 10.1109/PIMRC.2015.7343569
Guan-Ting Chou, K. Liu, S. Su
To meet the explosive demands of wireless access, existing cellular networks are under a revolutionary change from macro-only homogeneous networks to heterogeneous cellular networks (HCNs) with small cells added into current infrastructure. Since small-cell base stations (SBSs) transmit with a much small power than the macro base stations (MBSs), the cell association scheme based on received signal strength will underuse SBSs and thus the notion of cell range expansion (CRE) has been proposed as a de facto technique for future HCNs. In CRE, a constant range expansion bias (REB) is added to the received signal strength of SBSs to increase the footprint of small cells and in turn offload the MBS onto the SBSs overlaid in the same geographical area. Without taking the cell load into consideration, cell offloading may not be effectively performed because an overloaded MBS needs to offload users more urgently than an underloaded MBS. In this work, we propose a load-based cell association scheme, where a bias adjustment function is introduced to determine the timing and the magnitude of offloading based on the load of individual MBS. Using 3GPP long term evolution advanced (LTE-A) compliant parameters, extensive simulation results are presented to show that the proposed load-based cell association scheme outperforms the existing one in terms of both average user rates and association successful probability.
{"title":"Load-based cell association for load balancing in heterogeneous cellular networks","authors":"Guan-Ting Chou, K. Liu, S. Su","doi":"10.1109/PIMRC.2015.7343569","DOIUrl":"https://doi.org/10.1109/PIMRC.2015.7343569","url":null,"abstract":"To meet the explosive demands of wireless access, existing cellular networks are under a revolutionary change from macro-only homogeneous networks to heterogeneous cellular networks (HCNs) with small cells added into current infrastructure. Since small-cell base stations (SBSs) transmit with a much small power than the macro base stations (MBSs), the cell association scheme based on received signal strength will underuse SBSs and thus the notion of cell range expansion (CRE) has been proposed as a de facto technique for future HCNs. In CRE, a constant range expansion bias (REB) is added to the received signal strength of SBSs to increase the footprint of small cells and in turn offload the MBS onto the SBSs overlaid in the same geographical area. Without taking the cell load into consideration, cell offloading may not be effectively performed because an overloaded MBS needs to offload users more urgently than an underloaded MBS. In this work, we propose a load-based cell association scheme, where a bias adjustment function is introduced to determine the timing and the magnitude of offloading based on the load of individual MBS. Using 3GPP long term evolution advanced (LTE-A) compliant parameters, extensive simulation results are presented to show that the proposed load-based cell association scheme outperforms the existing one in terms of both average user rates and association successful probability.","PeriodicalId":274734,"journal":{"name":"2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129871952","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 : 2015-12-03DOI: 10.1109/PIMRC.2015.7343354
Wei Guo, Jiancun Fan, Geoffrey Y. Li, Qinye Yin, Xiaolong Zhu, Yusun Fu
In this paper, we investigate three-dimensional (3D) multiple-input multiple-output (MIMO) techniques with dynamic rank selection for long term evolution advanced (LTE-A) downlink cellular networks. To facilitate users to transmit different numbers of data streams, we develop a new structure for designing 3D precoding matrix (PM). Then based on the designed PM, 3D MIMO transmission with rank adaptation is proposed. The performance improvement of the proposed algorithms is demonstrated by system level simulation.
{"title":"3D MIMO with rank adaptation for LTE-A downlink transmission","authors":"Wei Guo, Jiancun Fan, Geoffrey Y. Li, Qinye Yin, Xiaolong Zhu, Yusun Fu","doi":"10.1109/PIMRC.2015.7343354","DOIUrl":"https://doi.org/10.1109/PIMRC.2015.7343354","url":null,"abstract":"In this paper, we investigate three-dimensional (3D) multiple-input multiple-output (MIMO) techniques with dynamic rank selection for long term evolution advanced (LTE-A) downlink cellular networks. To facilitate users to transmit different numbers of data streams, we develop a new structure for designing 3D precoding matrix (PM). Then based on the designed PM, 3D MIMO transmission with rank adaptation is proposed. The performance improvement of the proposed algorithms is demonstrated by system level simulation.","PeriodicalId":274734,"journal":{"name":"2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128375653","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 : 2015-12-03DOI: 10.1109/PIMRC.2015.7343293
Ronald Y. Chang, Sian-Jheng Lin, W. Chung
In this paper, we consider the network coding (NC) enabled three-phase protocol for information exchange between two users in a wireless two-way (bidirectional) relay network. Modulo-based (nonbinary) and XOR-based (binary) NC schemes are considered as information mixture schemes at the relay while all transmissions adopt pulse amplitude modulation (PAM). We first obtain the optimal constellation mapping at the relay that maximizes the decoding performance at the users for each NC scheme. Then, we compare the two NC schemes, each in conjunction with the optimal constellation mapping at the relay, in different conditions. Our results demonstrate that, in the low SNR regime, binary NC outperforms nonbinary NC with 4-PAM, while they have mixed performance with 8-PAM. This observation applies to quadrature amplitude modulation (QAM) composed of two parallel PAMs.
{"title":"On network coding and modulation mapping for three-phase bidirectional relaying","authors":"Ronald Y. Chang, Sian-Jheng Lin, W. Chung","doi":"10.1109/PIMRC.2015.7343293","DOIUrl":"https://doi.org/10.1109/PIMRC.2015.7343293","url":null,"abstract":"In this paper, we consider the network coding (NC) enabled three-phase protocol for information exchange between two users in a wireless two-way (bidirectional) relay network. Modulo-based (nonbinary) and XOR-based (binary) NC schemes are considered as information mixture schemes at the relay while all transmissions adopt pulse amplitude modulation (PAM). We first obtain the optimal constellation mapping at the relay that maximizes the decoding performance at the users for each NC scheme. Then, we compare the two NC schemes, each in conjunction with the optimal constellation mapping at the relay, in different conditions. Our results demonstrate that, in the low SNR regime, binary NC outperforms nonbinary NC with 4-PAM, while they have mixed performance with 8-PAM. This observation applies to quadrature amplitude modulation (QAM) composed of two parallel PAMs.","PeriodicalId":274734,"journal":{"name":"2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128477082","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 : 2015-12-03DOI: 10.1109/PIMRC.2015.7343306
Ruozhu Li, A. Masmoudi, T. Le-Ngoc
In this paper, we focus on the self-interference (SI) cancellation in the presence of phase-noise in full-duplex systems. Reducing the SI needs the estimation of the SI channel and the phase-noise. In particular, the time-varying phase-noise process is approximated by an expansion over a basis. As the unknown intended signal received from the other transceiver can limit the estimation performance if considered as additive noise, we incorporate it in the joint estimation of the SI channel, the intended channel and the phase-noise process. The proposed algorithm maximizes the likelihood function by fully exploiting the known transmitted data and the second-order statistic of the intended signal.
{"title":"Self-interference cancellation with phase-noise suppression in full-duplex systems","authors":"Ruozhu Li, A. Masmoudi, T. Le-Ngoc","doi":"10.1109/PIMRC.2015.7343306","DOIUrl":"https://doi.org/10.1109/PIMRC.2015.7343306","url":null,"abstract":"In this paper, we focus on the self-interference (SI) cancellation in the presence of phase-noise in full-duplex systems. Reducing the SI needs the estimation of the SI channel and the phase-noise. In particular, the time-varying phase-noise process is approximated by an expansion over a basis. As the unknown intended signal received from the other transceiver can limit the estimation performance if considered as additive noise, we incorporate it in the joint estimation of the SI channel, the intended channel and the phase-noise process. The proposed algorithm maximizes the likelihood function by fully exploiting the known transmitted data and the second-order statistic of the intended signal.","PeriodicalId":274734,"journal":{"name":"2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125674322","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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