171 citations · 430 across the 20 of their papers we have counts for
20 papers
On the Performance Analysis of Underlay Cognitive Radio Systems: A Deployment Perspective
Ankit Kaushik, Shree Krishna Sharma, Symeon Chatzinotas +2
We study the performance of cognitive Underlay System (US) that employ power control mechanism at the Secondary Transmitter (ST) from a deployment perspective. Existing baseline mo…
Performance Analysis of Underlay Cognitive Radio Systems: Estimation-Throughput Tradeoff
Ankit Kaushik, Shree Krishna Sharma, Symeon Chatzinotas +2
In this letter, we study the performance of cognitive Underlay Systems (USs) that employ power control mechanism at the Secondary Transmitter (ST). Existing baseline models conside…
Sensing-Throughput Tradeoff for Interweave Cognitive Radio System: A Deployment-Centric Viewpoint
Ankit Kaushik, Shree Krishna Sharma, Symeon Chatzinotas +2
Secondary access to the licensed spectrum is viable only if interference is avoided at the primary system. In this regard, different paradigms have been conceptualized in the exist…
Estimation-Throughput Tradeoff for Underlay Cognitive Radio Systems
Ankit Kaushik, Shree Krishna Sharma, Symeon Chatzinotas +2
Understanding the performance of cognitive radio systems is of great interest. To perform dynamic spectrum access, different paradigms are conceptualized in the literature. Of thes…
Analysis of Joint Transmit-Receive Diversity in Downlink MIMO Heterogeneous Cellular Networks
Ralph Tanbourgi, Harpreet S. Dhillon, Friedrich K. Jondral
We study multiple-input multiple-output (MIMO) based downlink heterogeneous cellular network (HetNets) with joint transmit-receive diversity using orthogonal space-time block codes…
Analysis of Heterogeneous Cellular Networks under Frequency Diversity and Interference Correlation
Ralph Tanbourgi, Friedrich K. Jondral
Analyzing heterogeneous cellular networks (HCNs) has become increasingly complex, particularly due to irregular base station locations, massive deployment of small cells, and flexi…
On the Deployment of Cognitive Relay as Underlay Systems
Ankit Kaushik, M. Rehan Raza, Friedrich K. Jondral
The objective of this paper is to extend the idea of Cognitive Relay (CR). CR, as a secondary user, follows an underlay paradigm to endorse secondary usage of the spectrum to the i…
On the Estimation of Channel State Transitions for Cognitive Radio Systems
Ankit Kaushik, Friedrich K. Jondral
Coexistence by means of shared access is a cognitive radio application. The secondary user models the slotted primary users channel access as a Markov process. The model parameters…
Analysis of Non-Coherent Joint-Transmission Cooperation in Heterogeneous Cellular Networks
Ralph Tanbourgi, Sarabjot Singh, Jeffrey G. Andrews +1
Base station (BS) cooperation is set to play a key role in managing interference in dense heterogeneous cellular networks (HCNs). Non-coherent joint transmission (JT) is particular…
Dual-Branch MRC Receivers under Spatial Interference Correlation and Nakagami Fading
Ralph Tanbourgi, Harpreet S. Dhillon, Jeffrey G. Andrews +1
Despite being ubiquitous in practice, the performance of maximal-ratio combining (MRC) in the presence of interference is not well understood. Because the interference received at…
A Tractable Model for Non-Coherent Joint-Transmission Base Station Cooperation
Ralph Tanbourgi, Sarabjot Singh, Jeffrey G. Andrews +1
This paper presents a tractable model for analyzing non-coherent joint transmission base station (BS) cooperation, taking into account the irregular BS deployment typically encount…
Effect of Spatial Interference Correlation on the Performance of Maximum Ratio Combining
Ralph Tanbourgi, Harpreet S. Dhillon, Jeffrey G. Andrews +1
While the performance of maximum ratio combining (MRC) is well understood for a single isolated link, the same is not true in the presence of interference, which is typically corre…
Cooperative Relaying in a Poisson Field of Interferers: A Diversity Order Analysis
Ralph Tanbourgi, Holger Jäkel, Friedrich K. Jondral
This work analyzes the gains of cooperative relaying in interference-limited networks, in which outages can be due to interference and fading. A stochastic model based on point pro…
Interference in Poisson Networks with Isotropically Distributed Nodes
Ralph Tanbourgi, Holger Jäkel, Friedrich K. Jondral
Practical wireless networks are finite, and hence non-stationary with nodes typically non-homo-geneously deployed over the area. This leads to a location-dependent performance and…
Interference and Throughput in Aloha-based Ad Hoc Networks with Isotropic Node Distribution
Ralph Tanbourgi, Holger Jäkel, Leonid Chaichenets +1
We study the interference and outage statistics in a slotted Aloha ad hoc network, where the spatial distribution of nodes is non-stationary and isotropic. In such a network, outag…
Resolving the Connectivity-Throughput Trade-Off in Random Networks
Ralph Tanbourgi, Holger Jäkel, Friedrich K. Jondral
The discrepancy between the upper bound on throughput in wireless networks and the throughput scaling in random networks which is also known as the connectivity-throughput trade-of…
On Outage Capacity for Incremental Relaying with Imperfect Feedback
Tobias Renk, Holger Jaekel, Friedrich Jondral
We investigate the effect of imperfect feedback on the ε-outage capacity of incremental relaying in the low signal-to-noise ratio (SNR) regime. We show that imperfect feedback lead…
Outage Capacity of Bursty Amplify-and-Forward with Incremental Relaying
Tobias Renk, Holger Jaekel, Friedrich Jondral +2
We derive the outage capacity of a bursty version of the amplify-and-forward (BAF) protocol for small signal-to-noise ratios when incremental relaying is used. We show that the rat…
Outage Regions and Optimal Power Allocation for Wireless Relay Networks
Tobias Renk, Holger Jaekel, Friedrich K. Jondral
We study outage regions for energy-constrained multi-hop and adaptive multi-route networks with an arbitrary number of relay nodes. Optimal power allocation strategies in the sense…
Outage Capacity of Incremental Relaying at Low Signal-to-Noise Ratios
Tobias Renk, Holger Jaekel, Friedrich K. Jondral +2
We present the ε-outage capacity of incremental relaying at low signal-to-noise ratios (SNR) in a wireless cooperative network with slow Rayleigh fading channels. The relay perform…