2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)最新文献_第7页

DS-SS quasi-optimal detection under interference generated by computer platforms 计算机平台干扰下DS-SS准最优检测

2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) Pub Date : 2015-08-31 DOI: 10.1109/SPAWC.2015.7227059

P. A. Roncagliolo, Javier G. García, C. Muravchik

引用次数: 0

Digital self-interference cancellation under nonideal RF components: Advanced algorithms and measured performance 非理想射频元件下的数字自干扰消除:先进算法和测量性能

2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) Pub Date : 2015-08-31 DOI: 10.1109/SPAWC.2015.7227045

D. Korpi, Timo Huusari, Yang-Seok Choi, L. Anttila, S. Talwar, M. Valkama

{"title":"Digital self-interference cancellation under nonideal RF components: Advanced algorithms and measured performance","authors":"D. Korpi, Timo Huusari, Yang-Seok Choi, L. Anttila, S. Talwar, M. Valkama","doi":"10.1109/SPAWC.2015.7227045","DOIUrl":"https://doi.org/10.1109/SPAWC.2015.7227045","url":null,"abstract":"This paper addresses digital self-interference cancellation in a full-duplex radio under the distortion of practical RF components. Essential self-interference signal models under different RF imperfections are first presented, and then used to formulate widely linear, nonlinear and augmented nonlinear digital canceler structures. Furthermore, a general parameter estimation procedure based on least squares is laid out. Digital cancellation with actual measured self-interference signals is then performed using all the presented methods. To ensure a realistic scenario, the used transmitter has realistic levels of I/Q imbalance, and is also utilizing a highly nonlinear low-cost power amplifier. Furthermore, a realistic RF canceler is incorporated in the measurements, and both shared-antenna and dual-antenna based devices are measured and experimented. The obtained results indicate that only a digital canceler structure capable of modeling all the essential impairments is able to suppress the self-interference close to the receiver noise floor.","PeriodicalId":211324,"journal":{"name":"2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120981175","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: 34

Opportunistic D2D communication in energy harvesting heterogeneous cellular network 能量收集异构蜂窝网络中的机会D2D通信

2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) Pub Date : 2015-08-31 DOI: 10.1109/SPAWC.2015.7226996

Howard H. Yang, Jemin Lee, Tony Q. S. Quek

{"title":"Opportunistic D2D communication in energy harvesting heterogeneous cellular network","authors":"Howard H. Yang, Jemin Lee, Tony Q. S. Quek","doi":"10.1109/SPAWC.2015.7226996","DOIUrl":"https://doi.org/10.1109/SPAWC.2015.7226996","url":null,"abstract":"Mobile user equipment relay (UER) has been introduced by 3GPP to enhance communication reliability through device-to-device (D2D) communications. However, as UER needs to use its own power to forward other user's data, D2D communication may be unreasonable to the UER. To overcome this issue, motivated by the recent progress in energy harvesting (EH) techniques, we propose a D2D communication provided EH heterogeneous cellular network (D2D-EHHN), where UERs harvest energy from an access point (AP) and use the harvested energy for D2D communication. We first derive the UER distribution according to the EH parameters, and then propose opportunistic D2D communication scheme to determine the transmission mode based on the best UER location. We then explore the effect of network parameters on the outage probability. Particularly, we show that having a high EH efficiency at user equipments (UEs) does not always improve the performance of D2D-EHHN, especially for dense network, and also how EH parameters affect the optimal offloading bias that minimizes the outage probability of D2D-EHHN.","PeriodicalId":211324,"journal":{"name":"2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124989501","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: 10

MU-MIMO beamforming with full-duplex open-loop training 具有全双工开环训练的MU-MIMO波束形成

2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) Pub Date : 2015-08-31 DOI: 10.1109/SPAWC.2015.7227048

Xu Du, John Tadrous, C. Dick, A. Sabharwal

引用次数: 10

Uplink capacity and user association for cooperative heterogeneous cellular networks 协同异构蜂窝网络的上行容量和用户关联

2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) Pub Date : 2015-08-31 DOI: 10.1109/SPAWC.2015.7227027

Zeina Mheich, A. Domenico, V. Savin

{"title":"Uplink capacity and user association for cooperative heterogeneous cellular networks","authors":"Zeina Mheich, A. Domenico, V. Savin","doi":"10.1109/SPAWC.2015.7227027","DOIUrl":"https://doi.org/10.1109/SPAWC.2015.7227027","url":null,"abstract":"This paper aims at studying user association for uplink (UL) transmission in cooperative heterogeneous cellular networks, where small cell sum rate is limited by the backhaul (BH) capacity. The investigated architecture can be modeled as a multiple-access relay channel (MARC) channel where multiple users communicate with a final destination (the macro base station) with the help of a relay (the small cell base station). A network-coding-based MARC, which exploits both the direct and relayed transmissions, is introduced to deal with low-capacity BH. We assess the UL average system capacity for 1) the baseline association based on the strongest reference signal received power (RSRP) in downlink (DL) and 2) the optimized user association chosen to improve the overall network UL sum-rate. Our results show that the network-coding-based MARC scheme achieves significant gains with respect to the pure relaying strategy. We further show that the optimized user association provides significant gains in network UL sum-rate with respect to the RSRP association, for the same sum power constraint and without degrading DL performance, especially when the BH capacity is sufficiently large.","PeriodicalId":211324,"journal":{"name":"2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128400437","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: 1

The pathwise MIMO Interfering Broadcast Channel 路径MIMO干扰广播信道

2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) Pub Date : 2015-08-31 DOI: 10.1109/SPAWC.2015.7227039

Wassim Tabikh, D. Slock, Y. Yuan-Wu

{"title":"The pathwise MIMO Interfering Broadcast Channel","authors":"Wassim Tabikh, D. Slock, Y. Yuan-Wu","doi":"10.1109/SPAWC.2015.7227039","DOIUrl":"https://doi.org/10.1109/SPAWC.2015.7227039","url":null,"abstract":"Interference alignment (IA) through beamforming in MIMO Interfering Broadcast Channels (IBC) allows to handle multi-cell interference with low latency. However, with multiple antennas on both ends, the MIMO setting requires global Channel State Information at the Transmitter (CSIT) (i.e. CSIT from the other transmitters (Tx) also). Though global CSIT can be organized within a cluster, it leads to significant fast CSIT acquisition overhead. In this paper we focus on the (dominant) multipath components in the MIMO propagation channels with only the slow fading components known to the Tx, corresponding to a structured form of covariance CSIT. The pathwise approach allows for a decomposition of the alignment tasks between Tx and receivers (Rx), leading to the sufficiency of local pathwise CSIT plus limited coordination overhead. To optimize Ergodic Weighted Sum Rate at finite SNR, we exploit the uplink/downlink duality to design the Tx beamformers as MMSE filters, in which averaging over complex path amplitudes leads to pathwise filters. We furthermore explore a relation between the difference of convex (DC) functions programming and the Weighted Sum MSE (WSMSE) approaches, indicating significant convergence speed potential for the former, and allowing a fixing of the latter for the case of partial CSIT.","PeriodicalId":211324,"journal":{"name":"2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127870413","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: 6

Compressed Sensing using sparse binary measurements: A rateless coding perspective 使用稀疏二值测量的压缩感知:无速率编码的视角

2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) Pub Date : 2015-08-31 DOI: 10.1109/SPAWC.2015.7227005

D. Vukobratović, D. Sejdinovic, A. Pižurica

引用次数: 0

Backward particle message passing 反向粒子信息传递

2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) Pub Date : 2015-08-31 DOI: 10.1109/SPAWC.2015.7227078

H. Wymeersch, N. V. Irukulapati, I. Sackey, P. Johannisson, E. Agrell

引用次数: 6

On quantization of log-likelihood ratios for maximum mutual information 最大互信息对数似然比的量化

2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) Pub Date : 2015-08-31 DOI: 10.1109/SPAWC.2015.7227051

A. Winkelbauer, G. Matz

引用次数: 15

Partial zero forcing for multi-way relay networks 多路中继网络的部分零强迫

2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) Pub Date : 2015-08-31 DOI: 10.1109/SPAWC.2015.7227101

Wuhua Zhang, M. Noori, Y. Jing, M. Ardakani

引用次数: 9