Proceedings of the 17th ACM International Symposium on Mobile Ad Hoc Networking and Computing最新文献_第3页

Understanding the impact of limited channel state information on massive MIMO network performances 了解有限信道状态信息对大规模MIMO网络性能的影响

Proceedings of the 17th ACM International Symposium on Mobile Ad Hoc Networking and Computing Pub Date : 2016-07-05 DOI: 10.1145/2942358.2942392

Jia Liu, A. Eryilmaz, N. Shroff, E. Bentley

{"title":"Understanding the impact of limited channel state information on massive MIMO network performances","authors":"Jia Liu, A. Eryilmaz, N. Shroff, E. Bentley","doi":"10.1145/2942358.2942392","DOIUrl":"https://doi.org/10.1145/2942358.2942392","url":null,"abstract":"In recent years, there have been significant efforts on the research and development of Massive MIMO (M-MIMO) technologies at the physical layer. So far, however, the understanding of how M-MIMO could affect the performance of network control and optimization algorithms remains rather limited. In this paper, we focus on analyzing the performance of the queue-length-based joint congestion control and scheduling framework (QCS) over M-MIMO cellular networks with limited channel state information (CSI). Our contributions in this paper are two-fold: i) We characterize the scaling performance of the queue-lengths and show that there exists a phase transitioning phenomenon in the steady-state queue-length deviation respect to the CSI quality (reflected in the number of bits B that represent CSI); and ii) We characterize the congestion control rate scaling performance and show that there also exists a phase transitioning phenomenon in steady-state congestion control rate deviation respect to the CSI quality. Collectively, the findings in this paper advance our understanding of the trade-offs between delay, throughput, and the accuracy/complexity of CSI acquisition in M-MIMO cellular network systems.","PeriodicalId":445286,"journal":{"name":"Proceedings of the 17th ACM International Symposium on Mobile Ad Hoc Networking and Computing","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134278075","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}

引用次数: 3

Self-adaptive network architecture reconfiguration in CRNs: demo crn中自适应网络架构重构:演示

Proceedings of the 17th ACM International Symposium on Mobile Ad Hoc Networking and Computing Pub Date : 2016-07-05 DOI: 10.1145/2942358.2942396

Haijun Wang, Haitao Zhao, Jiaxun Li, Jibo Wei

引用次数: 1

Towards secure spectrum auction: both bids and bidder locations matter: poster 走向安全的频谱拍卖:投标和投标地点都很重要:海报

Proceedings of the 17th ACM International Symposium on Mobile Ad Hoc Networking and Computing Pub Date : 2016-07-05 DOI: 10.1145/2942358.2947400

Zhili Chen, Lin Chen, Liusheng Huang, Hong Zhong

引用次数: 8

Towards in-situ sensor network assisted remote sensing of crop parameters: poster 基于原位传感器网络的作物参数遥感研究:海报

Proceedings of the 17th ACM International Symposium on Mobile Ad Hoc Networking and Computing Pub Date : 2016-07-05 DOI: 10.1145/2942358.2942408

Jan Bauer, B. Siegmann, T. Jarmer, N. Aschenbruck

引用次数: 0

P2-SAS: preserving users' privacy in centralized dynamic spectrum access systems P2-SAS:在集中式动态频谱接入系统中保护用户隐私

Proceedings of the 17th ACM International Symposium on Mobile Ad Hoc Networking and Computing Pub Date : 2016-07-05 DOI: 10.1145/2942358.2942384

Yanzhi Dou, K. Zeng, He Li, Yaling Yang, Bo Gao, Chaowen Guan, K. Ren, Shaoqian Li

{"title":"P2-SAS: preserving users' privacy in centralized dynamic spectrum access systems","authors":"Yanzhi Dou, K. Zeng, He Li, Yaling Yang, Bo Gao, Chaowen Guan, K. Ren, Shaoqian Li","doi":"10.1145/2942358.2942384","DOIUrl":"https://doi.org/10.1145/2942358.2942384","url":null,"abstract":"Centralized spectrum management is one of the key dynamic spectrum access (DSA) mechanisms proposed to govern the spectrum sharing between government incumbent users (IUs) and commercial secondary users (SUs). In the current centralized DSA designs, the operation data of both government IUs and commercial SUs needs to be shared with a central server. However, the operation data of government IUs is often classified information and the SU operation data may also be commercial secret. The current system design dissatisfies the privacy requirement of both IUs and SUs since the central server is not necessarily trust-worthy for holding such sensitive operation data. To address the privacy issue, this paper presents a privacy-preserving centralized DSA system (P2-SAS), which realizes the complex spectrum allocation process of DSA through efficient secure multi-party computation. In P2-SAS, none of the IU or SU operation data would be exposed to any snooping party, including the central server itself. We formally prove the correctness and privacy-preserving property of P2-SAS and evaluate its scalability and practicality using experiments based on real-world data. Experiment results show that P2-SAS can respond an SU's spectrum request in 6.96 seconds with communication overhead of less than 4 MB.","PeriodicalId":445286,"journal":{"name":"Proceedings of the 17th ACM International Symposium on Mobile Ad Hoc Networking and Computing","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115589374","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}

引用次数: 23

On LTE-WiFi coexistence and inter-operator spectrum sharing in unlicensed bands: altruism, cooperation and fairness LTE-WiFi共存与无牌频段运营商间频谱共享:利他、合作、公平

Proceedings of the 17th ACM International Symposium on Mobile Ad Hoc Networking and Computing Pub Date : 2016-07-05 DOI: 10.1145/2942358.2942382

Cengis Hasan, M. Marina, Ursula Challita

{"title":"On LTE-WiFi coexistence and inter-operator spectrum sharing in unlicensed bands: altruism, cooperation and fairness","authors":"Cengis Hasan, M. Marina, Ursula Challita","doi":"10.1145/2942358.2942382","DOIUrl":"https://doi.org/10.1145/2942358.2942382","url":null,"abstract":"The coexistence of LTE-Unlicensed (LTE-U) and WiFi in unlicensed spectrum is studied in the context of airtime sharing. We consider core problem where a set of LTE-U cells from different operators share the same channel as a co-located WiFi access point (AP). We assume that LTE-U cells utilize Listen-Before-Talk (LBT) as the default channel access mechanism. Principally, we deal with the following question: how should an operator's LTE-U cell adjust its contention window in order to provide a fair coexistence both with WiFi and co-located LTE-U cells of other operators? We consider that LTE-U cells behave altruistically both among themselves and to WiFi. Cooperation of LTE-U cells is studied using a coalition formation game framework which is based on the well-known Shapley value. We define a payoff configuration scheme in the coalition game which involves altruism. We prove that the coalitional game is always zero-monotonic, and Shapley value is also max-min fair. We compare airtime sharing performance of Shapley value with weighted proportional fairness via numerical results and show that Shapley value provides much better fairness than proportional fairness as determined by entropy and Jain's index metrics while having roughly equal average airtime.","PeriodicalId":445286,"journal":{"name":"Proceedings of the 17th ACM International Symposium on Mobile Ad Hoc Networking and Computing","volume":"170 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129934765","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}

引用次数: 25

Full-duplex delay-and-forward relaying 全双工延迟和转发中继

Proceedings of the 17th ACM International Symposium on Mobile Ad Hoc Networking and Computing Pub Date : 2016-07-05 DOI: 10.1145/2942358.2942370

Kai-Cheng Hsu, K. Lin, Hung-Yu Wei

{"title":"Full-duplex delay-and-forward relaying","authors":"Kai-Cheng Hsu, K. Lin, Hung-Yu Wei","doi":"10.1145/2942358.2942370","DOIUrl":"https://doi.org/10.1145/2942358.2942370","url":null,"abstract":"A full-duplex radio can transmit and receive simultaneously, and, hence, is a natural fit for realizing an in-band relay system. Most of existing full-duplex relay designs, however, simply forward an amplified version of the received signal without decoding it, and, thereby, also amplify the noise at the relay, offsetting throughput gains of full-duplex relaying. To overcome this issue, we explore an alternative: demodulate-and-forward. This paper presents the design and implementation of DelayForward (DF), a practical system that fully extracts the relay gains of full-duplex demodulate-and-forward mechanism. DF allows a relay to remove its noise from the signal it receives via demodulation and forward the clean signal to destination with a small delay. While such delay-and-forward mechanism avoids forwarding the noise at the relay, the half-duplex destination, however, now receives the combination of the direct signal from a source and the delayed signal from a relay. Unlike previous theoretical work, which mainly focuses on deriving the capacity of demodulate-and-forward relaying, we observe that such combined signals have a structure similar to the convolutional code, and, hence, propose a novel viterbi-type decoder to recover data from those combined signals in practice. Another challenge is that the performance of full-duplex relay is inherently bounded by the minimum of the relay's SNR and the destination's SNR. To break this limitation, we further develop a power allocation scheme to optimize the capacity of DF. We have built a prototype of DF using USRP software radios. Experimental results show that our power-adaptive DF delivers the throughput gain of 1.25×, on average, over the state-of-the-art full-duplex relay design. The gain is as high as 2.03× for the more challenged clients.","PeriodicalId":445286,"journal":{"name":"Proceedings of the 17th ACM International Symposium on Mobile Ad Hoc Networking and Computing","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125790728","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}

引用次数: 16

Geo-spatial resource allocation for heterogeneous vehicular communications: poster 异构车辆通信的地理空间资源分配:海报

Proceedings of the 17th ACM International Symposium on Mobile Ad Hoc Networking and Computing Pub Date : 2016-07-05 DOI: 10.1145/2942358.2942415

Matthias Wilhelm, Takamasa Higuchi, O. Altintas

引用次数: 9

4G LTE-assisted distributed Device-to-Device communication using android smartphones: demo 基于android智能手机的4G lte辅助分布式设备对设备通信:演示

Proceedings of the 17th ACM International Symposium on Mobile Ad Hoc Networking and Computing Pub Date : 2016-07-05 DOI: 10.1145/2942358.2942399

Yanzhao Hou, Yibing Duan, Junchen Han, Yu Chen, Xiaofeng Tao

引用次数: 2

IQ-Hopping: distributed oblivious channel selection for wireless networks iq跳频:无线网络的分布式无关信道选择

Proceedings of the 17th ACM International Symposium on Mobile Ad Hoc Networking and Computing Pub Date : 2016-07-05 DOI: 10.1145/2942358.2942376

Apurv Bhartia, Deeparnab Chakrabarty, Krishna Chintalapudi, L. Qiu, B. Radunovic, R. Ramjee

引用次数: 15