{"title":"Reducing RF resource for 5G communication networks: A spatial modulation motivated approach","authors":"Jian Song, Longzhuang He, Jintao Wang","doi":"10.23919/APCC.2017.8304089","DOIUrl":"https://doi.org/10.23919/APCC.2017.8304089","url":null,"abstract":"Multiple-input multiple-output (MIMO) techniques have constituted a key approach to facilitate the rapid data traffic growth in future 5G communication networks. However, the high cost and low efficiency nature of radio frequency (RF) resource has unfortunately reduced the benefit of MIMO. While spatial modulation (SM) technique has recently been proposed to reduce the RF resource for conventional small-scale MIMO systems, it is unclear if future 5G communication network, where conventional MIMOs encounter much different challenges, still embraces the benefits of SM. In order to address this issue, in this paper the application of SM in 5G communications is discussed, where we propose to incorporate SM into i) massive MIMO systems, and ii) millimeter wave (mmWave) MIMO systems, to strike a better tradeoff between energy efficiency and spectral efficiency for future wireless communications. It is revealed in this paper that SM is capable of improving the transmission data rates for 5G communication networks while maintaining an equal scale of RF resource occupancy, which therefore motivates the fruitful application of SM in 5G communications.","PeriodicalId":320208,"journal":{"name":"2017 23rd Asia-Pacific Conference on Communications (APCC)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124291973","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}
A. Nasser, A. Mansour, K. Yao, H. Abdallah, H. Charara
{"title":"In-band Full-Duplex communication for cognitive radio","authors":"A. Nasser, A. Mansour, K. Yao, H. Abdallah, H. Charara","doi":"10.23919/APCC.2017.8304006","DOIUrl":"https://doi.org/10.23919/APCC.2017.8304006","url":null,"abstract":"In this paper, we present a new Cognitive Radio (CR) paradigm based on the Full-Duplex mechanism. In the classical Full-Duplex CR (FD-CR) system, the Secondary User (SU) can examine the availability of a channel while transmitting. This fact leads to enhance the SU transmission rate. However, in this classical secondary network, SU is assumed to adopt frequency or time division duplex. In the proposed work, we analyse the CR performance with an In-Band Full-Duplex communication, i.e. SU can simultaneously receive and transmit at the same band. This scenario is accompanied with a Full-Duplex sensing, i.e. SU performs the Spectrum Sensing while transmitting. The Spectrum Sensing performance is analysed as well as proposing an adaptable detection mechanism that can perform well under such situation. Further, a study on the SU throughputs is developed in order to show the spectral efficiency of the proposed CR paradigm.","PeriodicalId":320208,"journal":{"name":"2017 23rd Asia-Pacific Conference on Communications (APCC)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121484087","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}
{"title":"Transceiver optimization for af MIMO relay systems with wireless powered relay nodes","authors":"Bin Li, Y. Rong","doi":"10.23919/APCC.2017.8304062","DOIUrl":"https://doi.org/10.23919/APCC.2017.8304062","url":null,"abstract":"In this paper, we study a two-hop amplify-and-forward (AF) multiple-input multiple-output (MIMO) relay system, where the relay node has no self-power supply, and relies on harvesting the radio frequency energy transferred from the source node to forward information from source to destination. We apply the time switching (TS) protocol between wireless information and energy transfer. As a novel contribution of this paper, we propose a more general energy consumption constraint at the source node during the information and energy transfer, which includes the constant power constraints used in existing works as special cases. We study the joint optimization of the source precoding matrices, the relay amplifying matrix, and the TS factor to maximize the source-destination mutual information (MI). The optimal structure of the source and relay matrices is derived, which reduces the original transceiver optimization problem to a simpler power allocation problem. Numerical simulations show that the proposed algorithm yield higher system MI and better rate-energy tradeoff than an existing approach.","PeriodicalId":320208,"journal":{"name":"2017 23rd Asia-Pacific Conference on Communications (APCC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115381954","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}
Yuta Imamura, D. Muramatsu, Y. Kishiyama, K. Higuchi
{"title":"Low latency hybrid ARQ method using channel state information before channel decoding","authors":"Yuta Imamura, D. Muramatsu, Y. Kishiyama, K. Higuchi","doi":"10.23919/APCC.2017.8304034","DOIUrl":"https://doi.org/10.23919/APCC.2017.8304034","url":null,"abstract":"This paper proposes a low latency hybrid automatic repeat request (HARQ) method that uses the channel state information before channel decoding to address the increased transmission latency resulting mainly from the delay time required for the channel decoding in HARQ. We focus on applying the proposed method to ultra-reliable low latency communication. The proposed method reduces the transmission latency by requesting early retransmission before the channel decoding process is completed. We consider two metrics for deciding the early retransmission request: (1) mutual information (MI) calculated from the signal-to-noise ratio of the received packet and (2) the a priori log-likelihood ratio (LLR) of the coded bits obtained from the signal detection results of the received packet. Simulation results show that the proposed method successfully reduces the transmission latency at the cost of a very small loss in throughput. Between these two metrics, the MI-based method achieves a slightly better tradeoff between the throughput and transmission latency than the LLR-based method.","PeriodicalId":320208,"journal":{"name":"2017 23rd Asia-Pacific Conference on Communications (APCC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130222226","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}
Xingguang Li, Xinxin Liu, Yunzhou Li, Limin Xiao, J. Wang
{"title":"A cooperative rate splitting scheme for device-to-device underlay cellular communication","authors":"Xingguang Li, Xinxin Liu, Yunzhou Li, Limin Xiao, J. Wang","doi":"10.23919/APCC.2017.8303965","DOIUrl":"https://doi.org/10.23919/APCC.2017.8303965","url":null,"abstract":"We consider the cooperative rate splitting scheme in device-to-device (D2D) underlay cellular network to reduce the interference causing performance degradation of communication. At the transmitter end, the transmitted information is split into two parts: common information and private information. The common information is exchanged between base station and D2D transmitter, and encoded together. At the receiver end, the common information is firstly decoded jointly and cancelled out. In this paper, we derive the optimal power allocation factors for the common information and the private information to maximize the sum rate, just using the large-scale fading information which is known at the base station which can reduce the computational complexity greatly. The simulation results show that the proposed scheme achieves higher sum rate than traditional schemes.","PeriodicalId":320208,"journal":{"name":"2017 23rd Asia-Pacific Conference on Communications (APCC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127843423","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}
{"title":"Performance analysis of IEEE 802.15.6 CSMA/CA using equilibrium point analysis","authors":"Takahiro Suzuki","doi":"10.23919/APCC.2017.8303963","DOIUrl":"https://doi.org/10.23919/APCC.2017.8303963","url":null,"abstract":"This paper presents a performance analysis of the IEEE 802.15.6 CSMA/CA by an approximate analytical technique called equilibrium point analysis (EPA). We develop an approximate Markov chain model of a wireless body area network (WBAN) with the CSMA/CA protocol taking into account data and ACK traffic. We then calculate throughput and average response time by the technique of EPA. The accuracy of analytic results obtained from the model is examined through simulation. Furthermore, we evaluate the stability behavior of the CSMA/CA network for varying the number of nodes, minimum number of contention window (CW), and maximum number of CW. Numerical results from both analysis and simulation show maximum number of CW strongly affects maximum number of nodes under constraint that the network is stable.","PeriodicalId":320208,"journal":{"name":"2017 23rd Asia-Pacific Conference on Communications (APCC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127924117","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}
Gil-Mo Kang, Hyeon Min Kirn, Y. Shin, Oh-Soon Shin
{"title":"Multiple antenna MPA detection for uplink SCMA systems based on selective Gaussian approximation","authors":"Gil-Mo Kang, Hyeon Min Kirn, Y. Shin, Oh-Soon Shin","doi":"10.23919/APCC.2017.8304024","DOIUrl":"https://doi.org/10.23919/APCC.2017.8304024","url":null,"abstract":"In this paper, we propose a selective Gaussian approximation to reduce the complexity of message passing algorithm (MPA) detection for uplink sparse code multiple access (SCMA) systems with multiple antennas. A subset of resource nodes, associated with antennas and subcarriers, are selected and the conventional MPA detection based on maximum likelihood (ML) is applied to those nodes. For the remaining resource nodes, Gaussian approximation is performed instead of ML. We first propose a simple but efficient antenna-subcarrier selection algorithm, and then develop a method to combine the two MPA detection schemes based on ML and Gaussian approximation. Numerical results are presented to show that the proposed MPA detection scheme provides an efficient tradeoff between the performance and receiver complexity.","PeriodicalId":320208,"journal":{"name":"2017 23rd Asia-Pacific Conference on Communications (APCC)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124657121","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}
{"title":"Optimal event-triggered strategy for energy harvesting mobile transmission","authors":"Yinxi Tan, Zhengchuan Chen, Pingyi Fan","doi":"10.23919/APCC.2017.8304039","DOIUrl":"https://doi.org/10.23919/APCC.2017.8304039","url":null,"abstract":"This work focuses on an energy harvesting communication system where a static sensor harvests energy from the environment and transmits information to a moving agent. Assuming that the battery is infinite and the sensor always has information to transmit, we first maximize the channel service theoretically, and then implement the event-triggered scheduling to control the time for starting transmission. We prove that energy depletion time is only relevant to the initial energy in the battery. There is no relation between the harvesting power and the energy depletion time. We provide the transmission triggered condition by deriving the initial energy threshold. Moreover, we extend the transmission model in single time-slot to an M/G/s(0) queuing system in multiple time slots and discuss the blocking probability caused by the event-triggered strategy. Our numerical results show the channel service of the scheme along with constant PA under various different configurations.","PeriodicalId":320208,"journal":{"name":"2017 23rd Asia-Pacific Conference on Communications (APCC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121283251","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}
{"title":"Symbol decision method of color-independent visual-MIMO system using a dynamic palette","authors":"Jai-Eun Kim, Ki-Doo Kim","doi":"10.23919/APCC.2017.8303996","DOIUrl":"https://doi.org/10.23919/APCC.2017.8303996","url":null,"abstract":"In color-independent visual multiple-input multiple-output (hereinafter, “visual-MIMO”) systems that use color-space-based modulation techniques, determining the color of the received symbols using image sensors is difficult. In this study, we apply the K-means based color quantization method at the receiving end to minimize the influence of the wireless channel noise. In addition, we propose a method to determine the symbol color using a dynamic palette that was generated based on the characteristics of a color-independent visual-MIMO system. Finally, by comparing the position of the received symbol with the position of the transmitted symbol in the color coordinate space, we prove that the proposed method improves the accuracy of symbol decision (i.e., symbol error rate performance).","PeriodicalId":320208,"journal":{"name":"2017 23rd Asia-Pacific Conference on Communications (APCC)","volume":"190 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121298275","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}
{"title":"Automatic gain control in high adjacent channel interference for OFDM systems","authors":"Hoon Kang, Jong-Seon No","doi":"10.23919/APCC.2017.8303964","DOIUrl":"https://doi.org/10.23919/APCC.2017.8303964","url":null,"abstract":"In wireless communication systems, the received signal power is highly fluctuated by changing of distance between transmitter and receiver, and by mobility of the receiver. Most of automatic gain controller (AGC) algorithms are developed to make the constant power of received signal. But in high adjacent channel interference (ACI) environment, the conventional algorithms do not work well. The proposed algorithm utilizes a gain splitting on variable gain amplifier (VGA) and fast Fourier transform (FFT) to enhance the receiver demodulation performance in high ACI environment. The proposed algorithm has better bit error rate (BER) performance than the conventional algorithm.","PeriodicalId":320208,"journal":{"name":"2017 23rd Asia-Pacific Conference on Communications (APCC)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116452069","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}