Yunpeng Sun, X. Wen, Zhaoming Lu, Tao Lei, Shantao Jiang
{"title":"Localization of WiFi Devices Using Unmanned Aerial Vehicles in Search and Rescue","authors":"Yunpeng Sun, X. Wen, Zhaoming Lu, Tao Lei, Shantao Jiang","doi":"10.1109/ICCChinaW.2018.8674518","DOIUrl":"https://doi.org/10.1109/ICCChinaW.2018.8674518","url":null,"abstract":"This paper presents an UAV (Unmanned Aerial Vehicle) system that can find the locations of the wireless devices such as smartphones and tablets in WiSAR (wildness search and rescue). By locating the wireless device, we can find the owner of it that get lost or get hurt in the wildness. The system contains a UAV armed with a wireless sniffer, a flight controller and data processing center. When the locating starts, the UAV will fly according to a planed route while the WiFi sniffer capturing the wireless signal from wireless devices. When the UAV discover the wireless device, a proposed algorithm will be executed to get the wireless device’s distance and direction. And it will be executed iteratively until the UAV gets near enough. In order to avoid the environmental impact, we use the Kalman filter to process the RSSI (Received Signal Strength Indication). The experiments have proved that the proposed method is a fast and precise way to localize the wireless device.","PeriodicalId":201746,"journal":{"name":"2018 IEEE/CIC International Conference on Communications in China (ICCC Workshops)","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115837780","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}
Li Jiang, Yi Liu, Chao Yang, Jiawen Kang, Xuzhen Zhu
{"title":"A Contract-Based Mobile Charging Scheme for Wireless-Powered Sensors in Industrial Internet of Things Networks","authors":"Li Jiang, Yi Liu, Chao Yang, Jiawen Kang, Xuzhen Zhu","doi":"10.1109/ICCChinaW.2018.8674517","DOIUrl":"https://doi.org/10.1109/ICCChinaW.2018.8674517","url":null,"abstract":"Industrial Internet of Things (IIoT) has provided intelligent industrial operations by leveraging the ubiquity of radio-frequency identification (RFID) and sensor devices. However, a wide range of deployment of IIoT accounts for a considerable amount of energy consumption. Mobile charging is a promising approach to charge low-power IIoT sensors for energy replenishment. In this paper, we consider a mobile charging IIoT network consisting of multiple mobile chargers that can travel through preplanned paths to charge a set of target sensors in the monitoring area. In practice, the limited energy capacity of the mobile chargers constrains their travel time. Thus, the aim of the mobile chargers is to charge more sensors with as less energy as possible. Nonetheless, the mobile chargers might not be aware of the truthful energy demand of the sensors due to information asymmetry. E.g., even if the sensors have sufficient energy to perform their operations, they might report that their current energy level is low with a motivation to receive more energy from the chargers. Information asymmetry leads to other low-power sensors being undercharged and affects the network lifetime. Motivated by this, we develop a contract theory-based mobile charging scheme for the low-power sensors in IIoT network. The optimal contract is derived to maximize the mobile chargers’ utility while meeting the sensors’ interests. Simulation results indicate that our proposed scheme can significantly improve the charging utility than the other mobile charging scheme.","PeriodicalId":201746,"journal":{"name":"2018 IEEE/CIC International Conference on Communications in China (ICCC Workshops)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125599409","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":"QoS-aware Resource Reallocation Based on Flow Priority in Software Defined Network","authors":"Kaiming Liu, Qijie Yuan, Yuan’an Liu","doi":"10.1109/ICCChinaW.2018.8674501","DOIUrl":"https://doi.org/10.1109/ICCChinaW.2018.8674501","url":null,"abstract":"Quality of service (QoS) control is an ongoing problem in existing network architectures, and it has long been deemed too complicated to provide QoS guarantees over the Internet. The emergence of software-defined network (SDN) as a new paradigm for network has been proved can efficiently provide QoS guarantee in existing network. In this paper, we propose a QoS-aware resource reallocation algorithm based on flow priority, and mathematically formulate the problem in software defined networks, the advantages of our proposed method has two aspects, first it can avoid resource partitioning efficiently from global view. Second, when network resource cannot afford all the QoS flows, it can reasonably distribute the network resource and guarantee the high priority flow with low degraded performance. The simulation results show that the proposed approach outperforms the conventional methods.","PeriodicalId":201746,"journal":{"name":"2018 IEEE/CIC International Conference on Communications in China (ICCC Workshops)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123169517","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":"Low Complexity Detection Algorithm for Generalized Precoding Aided Spatial Modulation","authors":"Yu Guo, Wenxiu Wu, Zhechen Zhu, Jia Hou","doi":"10.1109/ICCChinaW.2018.8674474","DOIUrl":"https://doi.org/10.1109/ICCChinaW.2018.8674474","url":null,"abstract":"In this paper, two joint lattice reduction (LR) and multiple-antennas detection algorithms based on generalized precoding aided spatial modulation (GPSM) are proposed. One is LR-zero forcing (ZF) algorithm and the other is LR-minimum mean square error (MMSE) algorithm. The simulation results show that the BER performance of the proposed algorithms are close to that of the maximum likelihood (ML) algorithm, but with much lower complexity and latency.","PeriodicalId":201746,"journal":{"name":"2018 IEEE/CIC International Conference on Communications in China (ICCC Workshops)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126265965","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":"Low Complexity Hybrid Precoding Algorithm in Millimeter Wave MIMO Systems","authors":"Ye Wang, Wei-chen Zou","doi":"10.1109/ICCChinaW.2018.8674485","DOIUrl":"https://doi.org/10.1109/ICCChinaW.2018.8674485","url":null,"abstract":"Millimeter wave (mmWave) communication will become a key technology for 5G networks. To combat the high path loss of mmWave, large antenna arrays and directional beamforming are used by mmWave communication systems. However, with the increase of number of antennas, the hardware and energy cost of traditional digital precoder is very high. Hence, hybrid precoding structure is introduced to overcome the difficulty. In this paper, we will propose an iterative heuristic hybrid precoding algorithm with full channel state information. We show that the proposed algorithm achieves near-optimal performance with low complexity. Therefore, the proposed algorithm provides a competitive trade-off strategy between performance and complexity for hybrid precoding design. Moreover, we find that the proposed algorithm is also able to achieve satisfactory spectral efficiency in quantization scenarios.","PeriodicalId":201746,"journal":{"name":"2018 IEEE/CIC International Conference on Communications in China (ICCC Workshops)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123887055","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":"Multiple Resource Units Allocation and Scheduling with QoS Guarantees for NB-IoT systems","authors":"Yating Gao, Ningbo Zhang, Guixia Kang","doi":"10.1109/ICCChinaW.2018.8674467","DOIUrl":"https://doi.org/10.1109/ICCChinaW.2018.8674467","url":null,"abstract":"In Narrowband Internet-of-Things (NB-IoT) systems, resource units (RUs) including five forms are defined as the scheduling units in narrowband physical uplink shared channel (NPUSCH), which causes resource fragmentation and intolerable delay when the multiple RUs are scheduled in arbitrary manner. In this paper, we propose a multiple RUs allocation and scheduling scheme with quality-of-service (QoS) guarantee for NB-IoT systems, which achieves higher resource efficiency and satisfies access delay requirements in a co-existing environment of both delay-sensitive and delay-tolerant services. Firstly, a multiple RUs allocation criterion depending on the QoS requirements for five types of services is proposed. Secondly, based on the proposed criterion, the multiple RUs scheduling is formulated as a two-dimensional packing problem and an effective multiple RUs placement algorithm with QoS guarantee is designed as an approximate solution to maximize resource efficiency. Finally, simulation results demonstrate that our scheme can significantly improve the resource efficiency and satisfy the access delay for each type of service.","PeriodicalId":201746,"journal":{"name":"2018 IEEE/CIC International Conference on Communications in China (ICCC Workshops)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123579639","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":"Uplink Grant-free Multi-codebook SCMA Based on High-overload Codebook Grouping","authors":"Hanyuan Huang, H Zhao, Feilong Wang, Jing Li","doi":"10.1109/ICCChinaW.2018.8674466","DOIUrl":"https://doi.org/10.1109/ICCChinaW.2018.8674466","url":null,"abstract":"Fifth generation (5G) wireless networks are expected to support massive connectivity with a great number of users. Current LTE uplink (UL) system is not able to efficiently support massive connectivity, because of the extra overhead and latency with granting. So UL grant-free transmission is proposed for 5G. Sparse code multiple access(SCMA) is a typical non-orthogonal multiple access technology in 5G. With SCMA, multi-user data is spread to same time-frequency resources, such as OFDMA tones, through codebook mapping. In this paper, the general design of high-overload SCMA codebooks is proposed. In the UL grant-free system, Active Users Detection (AUD) in receiver detects the active pilots to determine the active users and their codebooks, and the number of pilots will affect the AUD performance. Every user may use different number of codebooks to encode data to multiple codewords, because of different service, and that is called Multi-codebook SCMA (McSCMA). In this paper, based on grant-free McSCMA, codebook grouping(CG) is proposed for decreasing the number of combinations of codebook(CoC) in order to reduce the number of pilots to improve the AUD performance. The simulation results demonstrate that the design of high-overload codebook is feasible, and CG can improve the AUD performance based on grant-free McSCMA.","PeriodicalId":201746,"journal":{"name":"2018 IEEE/CIC International Conference on Communications in China (ICCC Workshops)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126918537","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":"Research on Ultra-Reliable and Low-Latency Wireless Communications in Smart Factory with Finite Block-Length","authors":"Yang Long, Yanan Gao, Tao Yang","doi":"10.1109/ICCChinaW.2018.8674473","DOIUrl":"https://doi.org/10.1109/ICCChinaW.2018.8674473","url":null,"abstract":"In 4G, the design of most wireless communication systems is typically based on the Shannon theorem, which shows how to efficiently transmit data packets under loose latency constraint, i.e., infinite block-length. However, the upcoming 5G wireless communication is envisioned to support connectivity for a wide range of devices that endowed with a novel trans./rece. mode, i.e., finite block-length. For example, such packets represent the most common forms of traffic generated by sensors and other devices involved in a machine-to-machine networks, as encountered for example in a industrial scenario. Furthermore, mission-critical automation systems may require communication at a latency not exceeding a few milliseconds, with packet error rate lower than 10−9. In this paper, based on the recently developed results for the coding rate under the finite block-length regime, we derive a more accurate packet error model in an assembly production line scenario. The simulation results show that our error model is accurate and it is necessary to take the finite block-length effects into account when the machine type communication is considered.","PeriodicalId":201746,"journal":{"name":"2018 IEEE/CIC International Conference on Communications in China (ICCC Workshops)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130374700","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}
Yanyan Wang, Ying Wei, Wensheng Zhang, Chengxiang Wang
{"title":"Filtered-OFDM for Visible Light Communications","authors":"Yanyan Wang, Ying Wei, Wensheng Zhang, Chengxiang Wang","doi":"10.1109/ICCChinaW.2018.8674487","DOIUrl":"https://doi.org/10.1109/ICCChinaW.2018.8674487","url":null,"abstract":"In visible light communications (VLCs), adaptive Orthogonal Frequency Division Multiplexing (OFDM) systems can adjust the transmission parameters according to channel estimation results to improve the system performance. Filtered-OFDM (F-OFDM) is a new flexible and adaptive technology based on OFDM systems and can further improve the system performance. In F-OFDM scheme, the out-of-band emission of OFDM signal is greatly inhibited by using the filter and the guard interval of the two subbands is reduced to save the spectrum resources. In this paper, we creatively apply the F-OFDM technology to visible light OFDM systems and derive the specific signal expression. Simulation results show that as the number of quadrature amplitude modulation (QAM) increases, the bit error rate (BER) performance of the F-OFDM system gets worse. Compared with asymmetrically clipped optical OFDM (ACO-OFDM) and direct current biased OFDM (DCO-OFDM) in VLCs, F-OFDM has better BER performance in 4QAM, 16QAM, and 64QAM schemes.","PeriodicalId":201746,"journal":{"name":"2018 IEEE/CIC International Conference on Communications in China (ICCC Workshops)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121354972","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":"Practical Neighbor Discovery in Multi-carrier Ad Hoc Networks with Directional Antennas","authors":"Yunfeng Liu, Zebing Feng, Z. Feng","doi":"10.1109/ICCChinaW.2018.8674522","DOIUrl":"https://doi.org/10.1109/ICCChinaW.2018.8674522","url":null,"abstract":"Neighbor discovery is a crucial step to establish links among the nodes in ad hoc network. Most existing researches on neighbor discovery are based on 1-way or 2-way handshake mechanism in single-carrier system, where nodes send 1-way or 2-way messages without getting acknowledgement from their neighbors. However, when the node scale becomes huge, the 1-way and 2-way handshake algorithms may increase the collision probability, which leads to a huge discovery time. In this paper, considering the multi-carrier system, we proposed a Multi-Hop Algorithm (MHA) to discover all the nodes using multiple 3-way handshake when the number of nodes is unknown beforehand. It can be applied in both the multi-hop and 1-hop scenario. Besides, the upper and lower bounds of the expected time to discover all the nodes are deduced. When there are four carriers in the system, the gap between the expected time and upper and lower bounds are only about 8.48% and 7.66%, respectively. It means that the theoretical bounds can serve as the effective guidance for the expected time. Through extensive simulations, we demonstrate that MHA can significantly decrease the expected time with the help of multi-carrier.","PeriodicalId":201746,"journal":{"name":"2018 IEEE/CIC International Conference on Communications in China (ICCC Workshops)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127695059","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}