2.2k citations · 6.7k across the 213 of their papers we have counts for
44 papers · 1 filter
Mixed-ADC/DAC Multipair Massive MIMO Relaying Systems: Performance Analysis and Power Optimization
Jiayi Zhang, Linglong Dai, Ziyan He +2
High power consumption and expensive hardware are two bottlenecks for practical massive multiple-input multiple-output (mMIMO) systems. One promising solution is to employ low-reso…
Signature-based Non-orthogonal Multiple Access (S-NOMA) for Massive Machine-Type Communications in 5G
Mostafa Mohammadkarimi, Muhammad Ahmad Raza, Octavia A. Dobre
The problem of providing massive connectivity in Internet-of-Things (IoT) with a limited number of available resources motivates the non-orthogonal multiple access (NOMA) solutions…
Joint Power and Time Allocation for NOMA-MEC Offloading
Zhiguo Ding, Jie Xu, Octavia A. Dobre +1
This paper considers non-orthogonal multiple access (NOMA) assisted mobile edge computing (MEC), where the power and time allocation is jointly optimized to reduce the energy consu…
Blind Identification of SFBC-OFDM Signals Based on the Central Limit Theorem
Mingjun Gao, Yongzhao Li, Octavia A. Dobre +1
Previous approaches for blind identification of space-frequency block codes (SFBC) do not perform well for short observation periods due to their inefficient utilization of frequen…
Directional Spatial Channel Estimation For Massive FD-MIMO in Next Generation 5G Networks
Ali A. Esswie, Octavia A. Dobre, Salama Ikki
Full-dimensional (FD) channel state information at transmitter (CSIT) has always been a major limitation of the spectral efficiency of cellular multi-input multi-output (MIMO) netw…
All Technologies Work Together for Good: A Glance to Future Mobile Networks
Animesh Yadav, Octavia A. Dobre
The astounding capacity requirements of 5G have motivated researchers to investigate the feasibility of many potential technologies, such as massive multiple-input multiple-output,…
Distributed Energy and Resource Management for Full-Duplex Dense Small Cells for 5G
Animesh Yadav, Octavia A. Dobre, Nirwan Ansari
We consider a multi-carrier and densely deployed small cell network, where small cells are powered by renewable energy source and operate in a full-duplex mode. We formulate an ene…
Identification of GSM and LTE Signals Using Their Second-order Cyclostationarity
Ebrahim Karami, Octavia A. Dobre, Nikhil Adnani
Automatic signal identification (ASI) has various millitary and commercial applications, such as spectrum surveillance and cognitive radio. In this paper, a novel ASI algorithm is…
Identification of SM-OFDM and AL-OFDM Signals Based on Their Second-Order Cyclostationarity
Ebrahim Karami, Octavia Dobre
Automatic signal identification (ASI) has important applications to both commercial and military communications, such as software defined radio, cognitive radio, spectrum surveilla…
Secrecy Outage of Proactive Relay Selection by Eavesdropper
Sarbani Ghose, Chinmoy Kundu, Octavia A. Dobre
In this paper, we consider an active eavesdropping scenario in a cooperative system consisting of a source, a destination, and an active eavesdropper with multiple decode-and-forwa…
Joint Blind Identification of the Number of Transmit Antennas and MIMO Schemes Using Gerschgorin Radii and FNN
Mingjun Gao, Yongzhao Li, Octavia A. Dobre +1
Blind enumeration of the number of transmit antennas and blind identification of multiple-input multiple-output (MIMO) schemes are two pivotal steps in MIMO signal identification f…
Blind Identification of SFBC-OFDM Signals Using Subspace Decompositions and Random Matrix Theory
Mingjun Gao, Yongzhao Li, Octavia A. Dobre +1
Blind signal identification has important applications in both civilian and military communications. Previous investigations on blind identification of space-frequency block codes…
Secrecy performance of dual-hop threshold relaying system with diversity reception
C. Kundu, T. M. N. Ngatched, O. A. Dobre
In this paper, the secrecy of a cooperative system consisting of a single source, relay, destination and eavesdropper is analyzed. The threshold-selection decode-and-forward relay…
Relay Selection to Improve Secrecy in Cooperative Threshold Decode-and-Forward Relaying
C. Kundu, T. M. N. Ngatched, O. A. Dobre
In this paper, relay selection is considered to enhance security of a cooperative system with multiple threshold-selection decode-and-forward (DF) relays. Threshold-selection DF re…
Incremental selective decode-and-forward relaying for power line communication
A. Dubey, C. Kundu, T. M. N. Ngatched +2
In this paper, an incremental selective decode-and-forward (ISDF) relay strategy is proposed for power line communication (PLC) systems to improve the spectral efficiency. Traditio…
Effects of CSI Knowledge on Secrecy of Threshold-Selection Decode-and-Forward Relaying
Chinmoy Kundu, Sarbani Ghose, Telex M. N. Ngatched +3
This paper considers secrecy of a three node cooperative wireless system in the presence of a passive eavesdropper. The threshold-selection decode-and-forward (DF) relay is conside…
Joint Inter-flow Network Coding and Opportunistic Routing in Multi-hop Wireless Mesh Networks: A Comprehensive Survey
Somayeh Kafaie, Yuanzhu Chen, Octavia A. Dobre +1
Network coding and opportunistic routing are two recognized innovative ideas to improve the performance of wireless networks by utilizing the broadcast nature of the wireless mediu…
Full-Duplex Communications: Performance in Ultra-Dense Small-Cell Wireless Networks
Animesh Yadav, Georgios I. Tsiropoulos, Octavia A. Dobre
Theoretically, full-duplex (FD) communications can double the spectral-efficiency (SE) of a wireless link if the problem of self-interference (SI) is completely eliminated. Recent…
On the Performance of Network NOMA in Uplink CoMP Systems: A Stochastic Geometry Approach
Yanshi Sun, Zhiguo Ding, Xuchu Dai +1
To improve the system throughput, this paper proposes a network non-orthogonal multiple access (N-NOMA) technique for the uplink coordinated multi-point transmission (CoMP). In the…
Doppler Spread Estimation in MIMO Frequency-selective Fading Channels
Mostafa Mohammadkarimi, Ebrahim Karami, Octavia A. Dobre +1
One of the main challenges in high-speed mobile communications is the presence of large Doppler spreads. Thus, accurate estimation of maximum Doppler spread (MDS) plays an importan…
Is Self-Interference in Full-Duplex Communications a Foe or a Friend?
Animesh Yadav, Octavia A. Dobre, H. Vincent Poor
This paper studies the potential of harvesting energy from the self-interference of a full-duplex base station. The base station is equipped with a self-interference cancellation s…
Performance Analysis of Network Coding with IEEE 802.11 DCF in Multi-Hop Wireless Networks
Somayeh Kafaie, Mohamed Hossam Ahmed, Yuanzhu Chen +1
Network coding is an effective idea to boost the capacity of wireless networks, and a variety of studies have explored its advantages in different scenarios. However, there is not…
FlexONC: Joint Cooperative Forwarding and Network Coding with Precise Encoding Conditions
Somayeh Kafaie, Yuanzhu Chen, Mohamed Hossam Ahmed +1
In recent years, network coding has emerged as an innovative method that helps a wireless network approach its maximum capacity, by combining multiple unicasts in one broadcast. Ho…
Network Coding Implementation Details: A Guidance Document
Somayeh Kafaie, Yuanzhu Peter Chen, Octavia A. Dobre +1
In recent years, network coding has become one of the most interesting fields and has attracted considerable attention from both industry and academia. The idea of network coding i…