Enabling Spectrum Sharing between LTE and RADAR Systems in S-Band

Ramaswamy, Venkatesh; Correia, Jeffrey T.

doi:10.1109/wcnc.2017.7925649

Cited by 4 publications

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…showed the operation of Time-Division Long-Term Evolution (TD-LTE) in the presence of pulsed interfering signals in the 3.55−3.65 GHz frequency band in [16], in [17] an overview of some of the techniques that can be used for enabling efficient co-existence of commercial LTE and radar systems in the 3.5 GHz band were presented. Similarly, in Europe, LSA has been identified by the European Commission (EC) and Conférence Européenne des Postes et des Télécommunications as the common basis for voluntary sharing within existing licenses in general, and especially for the implementation of Mobile/Fixed Communication Networks in military bands.…”

Section: Introductionmentioning

confidence: 99%

Transceiver Design and Power Allocation for Full-Duplex MIMO Communication Systems With Spectrum Sharing Radar

Singh

Biswas

Ratnarajah

et al. 2018

IEEE Trans. Cogn. Commun. Netw.

View full text Add to dashboard Cite

The networking paradigm of spectrum sharing is a promising technology to solve the spectrum paucity that has resulted from the exponential increase in the number of wireless devices and ubiquitous services. In light of the novel concept of Authorized/Licensed Shared Access, in this work, we consider the spectrum sharing between a collocated multiple-input-multipleoutput (MIMO) radar and a full-duplex (FD) MIMO cellular communication system consisting of a FD base station (BS) serving multiple downlink and uplink users simultaneously, without hindering the detection probability of the radar. The main objective is to develop an optimization technique at the cellular system for jointly designing the transceiver for the cellular BS and power allocation vectors for uplink users that can maximize the detection probability of radar, while guaranteeing a pre-defined quality-of-service for each user and power budget for the uplink users and BS. The original problem is non-convex and thus, we convert the non-convex problem into a secondorder cone and propose an iterative algorithm to find the optimal solution. Numerical results are then provided to demonstrate the feasibility of the spectral coexistence and show a scalable tradeoff in performance of both systems.

show abstract

Section: Introductionmentioning

confidence: 99%

Transceiver Design and Power Allocation for Full-Duplex MIMO Communication Systems With Spectrum Sharing Radar

Singh

Biswas

Ratnarajah

et al. 2018

IEEE Trans. Cogn. Commun. Netw.

View full text Add to dashboard Cite

show abstract

“…Another solution is to use more spectrum by designing techniques that enable spectrum usage on a shared access (SA) basis in those frequency bands that are currently allocated exclusively to various radar systems [1]. This solution is motivated by the fact that radar systems are allocated a large amount of spectrum below 6 GHz which is well suited for various wireless communication technologies [1]- [3].…”

Section: Introductionmentioning

confidence: 99%

An FPGA-Based Implementation of a Multifunction Environment Sensing Device for Shared Access With Rotating Radars

Khan

Lehtomäki

Hossain

et al. 2018

IEEE Trans. Instrum. Meas.

View full text Add to dashboard Cite

To protect radar receivers and to facilitate shared access (SA) in radar bands, regulatory bodies have recommended the use of spectrum monitoring devices called environmental sensing capability (ESC). High-speed and low-cost ESC devices are required to process in real-time the large amount of data (IQ samples) for detection of radar signals and to differentiate them from secondary users (SUs) signals. In this paper, we present a Field Programmable Gate Array (FPGA) based design and implementation of a multifunction ESC device that can detect radar pulses and can also differentiate them from SU signals in microsecond time scales. The proposed ESC device performs the following tasks in parallel: 1) it detects and differentiates between radar and SU signals; 2) measures received signal strength (RSS) from SUs for radar protection; and 3) also measures SUs' airtime utilization (ATU) in a channel which can be used to perform load balancing (based on ATU) of SUs on different channels for efficient access. Detection of signals requires threshold setting. We present a novel minimum-based threshold setting technique which is suitable for real-time operation of energy detectors. We implement a prototype of the proposed ESC device design on a Wireless Open Access Research Platform node which is equipped with a Xilinx FPGA. We evaluate the performance of the implemented device and show that with very high probability (close to 100%) it detects and differentiates between radar and SU signals. Moreover, it also accurately measures the ATU of SUs.

show abstract

An O-RAN Approach to Spectrum Sharing Between Commercial 5G and Government Satellite Systems

Smith

Freeberg

Machacek

et al. 2021

MILCOM 2021 - 2021 IEEE Military Communications Conference (MILCOM)

View full text Add to dashboard Cite

Enabling Spectrum Sharing between LTE and RADAR Systems in S-Band

Cited by 4 publications

References 2 publications

Transceiver Design and Power Allocation for Full-Duplex MIMO Communication Systems With Spectrum Sharing Radar

Transceiver Design and Power Allocation for Full-Duplex MIMO Communication Systems With Spectrum Sharing Radar

An FPGA-Based Implementation of a Multifunction Environment Sensing Device for Shared Access With Rotating Radars

An O-RAN Approach to Spectrum Sharing Between Commercial 5G and Government Satellite Systems

Contact Info

Product

Resources

About