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IEEE Wireless Communications Letters
Year: 2019 | Volume: 8 | Issue: 3
Adaptive Transmission Control for Software Defined Vehicular Networks
Wei Quan;Nan Cheng;Meng Qin;Hongke Zhang;H. Anthony Chan;Xuemin Shen
Publication Year: 2019,Page(s):653 - 656
Cited by: Papers (73)
Efficient transmission control is an intricate issue in vehicular networks due to the inherent topology dynamics and unreliable link conditions. Leveraging flexible management in software-defined vehicular networks, we propose a software-defined adaptive transmission control protocol (SATCP) for selecting various transmission control policies to adapt to the time-varying vehicular environment. We ...Show More
Outage Constrained Secrecy Rate Maximization for MIMOME Multicast Wiretap Channels
Publication Year: 2019,Page(s):657 - 660
Cited by: Papers (7)
In this letter, we investigate a robust transmit optimization design based on an artificial noise (AN)-aided precoding scheme for maximizing secrecy rate in a multiple-input multiple-output multiple-eavesdropper multicast network where a transmitter sends confidential information to multiple intended users and provides energy for multiple idle nodes while multiple passive eavesdroppers try to over...Show More
Utilization of Opportunistic-Bits With Paired Transmissions
Publication Year: 2019,Page(s):661 - 664
Cited by: Papers (3)
This letter proposes a high spectral efficiency method for massive Transmission Control Protocol/Internet Protocol (TCP/IP) packet transmission over a network, in which each packet is divided into a header and a data unit (DU). By dividing each DU further into two parts: the opportunistic-bits (OB) and conventional-bits, two DUs are grouped into a DU-pair, which shares the same OBs. By cutting off...Show More
Deep Convolutional Neural Networks for Link Adaptations in MIMO-OFDM Wireless Systems
Publication Year: 2019,Page(s):665 - 668
Cited by: Papers (26)
This letter proposes a deep convolutional neural network (DCNN) approach for adaptive modulation and coding in practical multiple-input, multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) systems. Our target is to maximize the throughput and fulfill a packet error rate constraint. We consider practical impairments of MIMO-OFDM receiver, such as imperfect timing synchronization,...Show More
Energy Efficient Precoder in Multi-User MIMO Systems With Imperfect Channel State Information
Publication Year: 2019,Page(s):669 - 672
Cited by: Papers (6)
This letter is on the energy efficient precoder design in multi-user multiple-input multiple-output systems which is also robust with respect to the imperfect channel state information at the transmitters. In other words, we design the precoder matrix associated with each transmitter to maximize the general energy efficiency of the network. We investigate the problem in two conventional cases. The...Show More
PCI-MDR: Missing Data Recovery in Wireless Sensor Networks Using Partial Canonical Identity Matrix
Publication Year: 2019,Page(s):673 - 676
Cited by: Papers (14)
Data loss in wireless sensor networks (WSNs) is quite prevalent. Since sensor nodes are employed for various critical applications, accurate recovery of missing data is important. Researchers have exploited different characteristics of WSN data, such as low rank, spatial, and temporal correlation for missing data recovery. However, the performance of existing methods is dependent on various factor...Show More
Capacity Enhancement for Hotspot Area in 5G Cellular Networks Using mmWave Aerial Base Station
Publication Year: 2019,Page(s):677 - 680
Cited by: Papers (15)
The aerial base station (AeBS) combined with mmWave band communication is a promising way to flexibly enhance the wireless network capacity in data traffic hotspots caused by bandwidth-demanding services. In this letter, we present an approach for achieving optimal altitude selection and joint optimization of beamwidth and beam power of 3-D beams cast from mmWave AeBS to be deployed over a hotspot...Show More
Secrecy Performance of Two-Level Superposition Transmission in Untrusted Multiuser Wireless Downlink Systems
Publication Year: 2019,Page(s):681 - 684
Cited by: Papers (1)
In an untrusted multiuser downlink system (UTMS) where a desired user is opportunistically selected and all the other users are potential eavesdroppers (Eves), the system performance with security requirement will deteriorate as the number of users grows. In this letter, we have proposed two-level superposition transmission (SuT) in which secure signals are superimposed with ordinary signals that ...Show More
Distributed CSIT Does Not Reduce the Generalized DoF of the 2-User MISO Broadcast Channel
Antonio Bazco-Nogueras;Paul de Kerret;David Gesbert;Nicolas Gresset
Publication Year: 2019,Page(s):685 - 688
Cited by: Papers (6)
In this letter we analyze the high signal-to-noise ratio regime performance of the multi-transmitter MISO broadcast channel with so-called distributed channel state information at the transmitters (CSIT), i.e., where CSIT is made transmitter-dependent. Specifically, we show the unexpected result that it is possible to achieve the same generalized degrees-of-freedom independently of whether a chann...Show More
A Destination-Aided Wireless Energy Transfer Scheme in Multi-Antenna Relay Sensor Networks
Ruijin Sun;Ying Wang;Runcong Su;Nan Cheng;Xuemin Sherman Shen
Publication Year: 2019,Page(s):689 - 692
Cited by: Papers (9)
We propose a destination-aided wireless energy transfer scheme in wireless relay sensor networks, where the power of the information collector who has stable power supply is fully exploited. Specifically, a multi-antenna three-node (S, R, D) relay system is considered, where the energy-constrained node R (sensor) assists to forward the message from S (sensor) to D (information collector), and also...Show More
Enhanced Adaptive Polar-Linear Interpolation Aided Channel Estimation
Publication Year: 2019,Page(s):693 - 696
Cited by: Papers (9)
Among the numerous channel estimation (CE) techniques in the literature, pilot-aided CE has been widely employed, where interpolation methods can be used for reducing pilot overhead. The conventional family of linear interpolation (LI)-based algorithms is easy to implement, but naturally results in residual interpolation errors even at high signal-to-noise ratios. In this letter, an enhanced adapt...Show More
Enhanced Adaptive Polar-Linear Interpolation Aided Channel Estimation
Year: 2019 | Volume: 8 | Issue: 3
Joint Power and Trajectory Design for UAV-Relayed Wireless Systems
Publication Year: 2019,Page(s):697 - 700
Cited by: Papers (33)
In this letter, an unmanned aerial vehicle (UAV) is employed as relay to build temporary communication links for disconnected ground nodes. To improve the fairness and energy efficiency, two scenarios are investigated. First, for given transmission power budget, we consider maximizing the minimum information rate by joint power and trajectory optimization over a time horizon. Then, for given requi...Show More
Integrated Cooperative Synchronization for Wireless Sensor Networks
G. S. S. Chalapathi;Bernhard Etzlinger;S. Gurunarayanan;Andreas Springer
Publication Year: 2019,Page(s):701 - 704
Cited by: Papers (4)
A precise decentralized clock synchronization method, referred to as integrated cooperative synchronization (ICS) is proposed in this letter. ICS is a delay compensating method that relies on mean-field message passing, where the measurement phase is integrated into the message passing phase. By selecting an extended factorization of the underlying joint a-posteriori distribution of the clock para...Show More
Hybrid Beamforming for Millimeter Wave Massive Multiuser MIMO Systems Using Regularized Channel Diagonalization
Publication Year: 2019,Page(s):705 - 708
Cited by: Papers (39)
This letter presents a novel hybrid analog-digital beamforming design for massive multiuser MIMO downlink transmission in sparse millimeter wave channels. The proposed hybrid regularized channel diagolnalization (HRCD) scheme combines analog (RF) phase-only beamforming with linear digital (baseband) precoding based on regularized channel diagonalization. Being a hybrid beamforming design utilizing...Show More
On the Resource Consumption of M2M Random Access: Efficiency and Pareto Optimality
Publication Year: 2019,Page(s):709 - 712
Cited by: Papers (4)
The advent of machine-to-machine communication has sparked a new wave of interest to random access protocols, especially in application to LTE random access (RA). By analogy with classical slotted ALOHA, state-of-the-art models LTE RA as a multichannel slotted ALOHA. In this letter, we direct the attention to the resource consumption of RA. We show that the consumption is a random variable depende...Show More
Optimal Combining and Performance Analysis for Two-Way EH Relay Systems With TDBC Protocol
Publication Year: 2019,Page(s):713 - 716
Cited by: Papers (4)
In this letter, we investigate a simultaneous wireless information and power transfer (SWIPT) based two-way decode-and-forward relay network, where time switching is employed for SWIPT and time division broadcast is employed for two-way relaying. We focus on the design of a combining scheme that decides how the relay combines the signals received from two terminals through a power allocation ratio...Show More
Minimum BER Power Allocation for Space-Time Coded Generalized Frequency Division Multiplexing Systems
Publication Year: 2019,Page(s):717 - 720
Cited by: Papers (9)
In this letter, we propose a minimum BER (MBER) power allocation (PA) method for generalized frequency division multiplexing (GFDM) systems with zero forcing receiver. The MBER PA of GFDM systems is solved through minimizing noise enhancement factor at the receiver. Additionally, theoretical BER and achievable rate (AR) expressions are derived with the proposed PA strategy. Furthermore, we also ge...Show More
QoS-Guaranteed Adaptive Bandwidth Allocation for Mobile Multiuser Scalable Video Streaming
Publication Year: 2019,Page(s):721 - 724
Cited by: Papers (3)
Bandwidth allocation plays an important role to guarantee the quality of service (QoS) in streaming real-time scalable video to multiuser over wireless time-varying channels. In this letter, an adaptive bandwidth allocation (ABA) scheme is presented to maximize the bandwidth utilization while provisioning each individual user's QoS. Cooperated with traffic rate adaptation, it jointly addresses the...Show More
Adaptive Macro Spatial Modulation for mmWave Dense Networks
Publication Year: 2019,Page(s):725 - 728
Cited by: Papers (1)
In this letter, an adaptive macro spatial modulation scheme is proposed for the uplink of a millimeter-wave dense network. In the proposed scheme, a user equipment (UE) adaptively establishes communication links with multiple small base stations (SBSs) and switches its beam direction between these SBSs according to part of its transmitting information. We first model the optimal signal transmissio...Show More
A Channel and Queue-Aware Scheduling for the LTE Downlink Based on Service Curve and Buffer Overflow Probability
Publication Year: 2019,Page(s):729 - 732
Cited by: Papers (7)
In this letter, we propose a joint channel and queue-aware resource block allocation algorithm for the long-term evolution (LTE) downlink based on buffer overflow probability estimation. To this end, we first derive an equation for the buffer overflow probability bound. Furthermore, we propose a novel service curve in order to estimate maximum delay for LTE system users considering the Effective e...Show More
Generalized Precoding-Aided Spatial Modulation via Receive Antenna Transition
Publication Year: 2019,Page(s):733 - 736
Cited by: Papers (13)
Receive antenna transition, which implies the transition of the active receive antennas during a symbol period, is investigated in this letter to enhance the error performance of the generalized precoding-aided spatial modulation (GPSM). Specifically, the precoding at the transmitter alters once at the midpoint of a symbol duration such that one group of active receive antennas transfers to anothe...Show More
Codeword Position Index Based Sparse Code Multiple Access System
Publication Year: 2019,Page(s):737 - 740
Cited by: Papers (8)
In this letter, a novel variant of sparse code multiple access (SCMA), called codeword position index-based SCMA (CPI-SCMA), is proposed. In this scheme, the information is transmitted not only by the codewords in a M-point SCMA codebook, but also by the indices of the codeword positions in a data block. As such, both the power and transmission efficiency can be improved. Furthermore, CPI-SCMA can...Show More
Downlink Resource Sharing in Multichannel Device-to-Device Communication
Lujuan Ma;Xiaoping Deng;Jiaheng Wang;Yongming Huang;Fengfeng Shi
Publication Year: 2019,Page(s):741 - 744
Cited by: Papers (9)
We consider downlink resource sharing between multiple cellular users (CUs) and device-to-device (D2D) links, where each D2D link reuses multiple CU channels and each CU channel is shared by multiple D2D links. The design goal is to provide quality-of-service protection for CUs and meanwhile enhance the spectral efficiency of D2D links, which leads to a difficult resource sharing problem. We propo...Show More
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Editor-in-Chief
National Taiwan University, Department of Computer Science & Information Engineering
Taipei
Taiwan
acpang@csie.ntu.edu.twContact Information
Editor-in-Chief
National Taiwan University, Department of Computer Science & Information Engineering
Taipei
Taiwan
acpang@csie.ntu.edu.twIEEE Account
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