Inter-Cell Interference Coordination in Heterogeneous Networks with Open Access of Small Cells

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This document discusses interference coordination in heterogeneous networks with open access small cells. It proposes using cooperative clustering of small cells, block diagonalization precoding, and water filling power allocation to manage interference. The system model and simulation results are presented. Coordination strategies including block diagonalization and water filling power allocation outperform previous non-cooperative and equal power allocation schemes in terms of sum rate capacity.

Tecnologia Negócios

Toha Ardi Nugraha
WENS Laboratory
IT Convergence Engineering
Kumoh National Institute of Technology
Inter-Cell Interference Coordination in
Heterogeneous Networks with Open
Access of Small Cells
Wireless and Emerging Networking Siystem Laboratory

Toha Ardi Nugraha - IT Convergence Engineering- KIT
Inter-Cell Interference Coordination in Heterogeneous Networks with Open
Access of Small Cells
Contents
•Introduction
•Problem Formulation
•Previous Works
•System Model
•Simulation Results
•Conclusion

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Kumoh National Institute of Technology
Thesis Presentation

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The microservices honeymoon is over. When starting a new project or revamping a legacy monolith, teams started looking for alternatives to microservices. The Modular Monolith, or 'Modulith', is an architecture that reaps the benefits of (vertical) functional decoupling without the high costs associated with separate deployments. This talk will delve into the advantages and challenges of this progressive architecture, beginning with exploring the concept of a 'module', its internal structure, public API, and inter-module communication patterns. Supported by spring-modulith, the talk provides practical guidance on addressing the main challenges of a Modultith Architecture: finding and guarding module boundaries, data decoupling, and integration module-testing. You should not miss this talk if you are a software architect or tech lead seeking practical, scalable solutions. About the author With two decades of experience, Victor is a Java Champion working as a trainer for top companies in Europe. Five thousands developers in 120 companies attended his workshops, so he gets to debate every week the challenges that various projects struggle with. In return, Victor summarizes key points from these workshops in conference talks and online meetups for the European Software Crafters, the world’s largest developer community around architecture, refactoring, and testing. Discover how Victor can help you on victorrentea.ro : company training catalog, consultancy and YouTube playlists.

Modular Monolith - a Practical Alternative to Microservices @ Devoxx UK 2024

Victor Rentea

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Deepika Singh

The value of a flexible API Management solution for Open Banking Steve Melan, Manager for IT Innovation and Architecture - State's and Saving's Bank of Luxembourg Apidays New York 2024: The API Economy in the AI Era (April 30 & May 1, 2024) ------ Check out our conferences at https://www.apidays.global/ Do you want to sponsor or talk at one of our conferences? https://apidays.typeform.com/to/ILJeAaV8 Learn more on APIscene, the global media made by the community for the community: https://www.apiscene.io Explore the API ecosystem with the API Landscape: https://apilandscape.apiscene.io/

Apidays New York 2024 - The value of a flexible API Management solution for O...

apidays

EMPOWERMENT TECHNOLOGY GRADE 11 QUARTER 2 REVIEWER

MadyBayot

Architecting Cloud Native Applications

WSO2

Dubai, known for its towering skyscrapers, luxurious lifestyle, and relentless pursuit of innovation, often finds itself in the global spotlight. However, amidst the glitz and glamour, the emirate faces its own set of challenges, including the occasional threat of flooding. In recent years, Dubai has experienced sporadic but significant floods, disrupting normalcy and posing unique challenges to its infrastructure. Among the critical nodes in this bustling metropolis is the Dubai International Airport, a vital hub connecting the world. This article delves into the intersection of Dubai flood events and the resilience demonstrated by the Dubai International Airport in the face of such challenges.

Rising Above_ Dubai Floods and the Fortitude of Dubai International Airport.pdf

Orbitshub

Corporate and higher education. Two industries that, in the past, have had a clear divide with very little crossover. The difference in goals, learning styles and objectives paved the way for differing learning technologies platforms to evolve. Now, those stark lines are blurring as both sides are discovering they have content that’s relevant to the other. Join Tammy Rutherford as she walks through the pros and cons of corporate and higher ed collaborating. And the challenges of these different technology platforms working together for a brighter future.

Corporate and higher education May webinar.pptx

Rustici Software

Following the popularity of “Cloud Revolution: Exploring the New Wave of Serverless Spatial Data,” we’re thrilled to announce this much-anticipated encore webinar. In this sequel, we’ll dive deeper into the Cloud-Native realm by uncovering practical applications and FME support for these new formats, including COGs, COPC, FlatGeoBuf, GeoParquet, STAC, and ZARR. Building on the foundation laid by industry leaders Michelle Roby of Radiant Earth and Chris Holmes of Planet in the first webinar, this second part offers an in-depth look at the real-world application and behind-the-scenes dynamics of these cutting-edge formats. We will spotlight specific use-cases and workflows, showcasing their efficiency and relevance in practical scenarios. Discover the vast possibilities each format holds, highlighted through detailed discussions and demonstrations. Our expert speakers will dissect the key aspects and provide critical takeaways for effective use, ensuring attendees leave with a thorough understanding of how to apply these formats in their own projects. Elevate your understanding of how FME supports these cutting-edge technologies, enhancing your ability to manage, share, and analyze spatial data. Whether you’re building on knowledge from our initial session or are new to the serverless spatial data landscape, this webinar is your gateway to mastering cloud-native formats in your workflows.

Cloud Frontiers: A Deep Dive into Serverless Spatial Data and FME

Safe Software

AI+A11Y 11MAY2024 HYDERBAD GAAD 2024 - HelloA11Y (11 May 2024)

Samir Dash

When you’re building (micro)services, you have lots of framework options. Spring Boot is no doubt a popular choice. But there’s more! Take Quarkus, a framework that’s considered the rising star for Kubernetes-native Java. It always depends on what's best for your situation, but how to choose the best solution if you're comparing 2 frameworks? Both Spring Boot and Quarkus have their positives and negatives. Let us compare the two by live coding a couple of common use cases in Spring Boot and Quarkus. After this talk, you’ll be ready to get started with Quarkus yourself, and know when to select Quarkus or Spring Boot.

Spring Boot vs Quarkus the ultimate battle - DevoxxUK

Jago de Vreede

Scaling API-first – The story of a global engineering organization Ian Reasor, Senior Computer Scientist - Adobe Radu Cotescu, Senior Computer Scientist - Adobe Apidays New York 2024: The API Economy in the AI Era (April 30 & May 1, 2024) ------ Check out our conferences at https://www.apidays.global/ Do you want to sponsor or talk at one of our conferences? https://apidays.typeform.com/to/ILJeAaV8 Learn more on APIscene, the global media made by the community for the community: https://www.apiscene.io Explore the API ecosystem with the API Landscape: https://apilandscape.apiscene.io/

Apidays New York 2024 - Scaling API-first by Ian Reasor and Radu Cotescu, Adobe

apidays

Inter-Cell Interference Coordination in Heterogeneous Networks with Open Access of Small Cells

1. Toha Ardi Nugraha WENS Laboratory IT Convergence Engineering Kumoh National Institute of Technology Inter-Cell Interference Coordination in Heterogeneous Networks with Open Access of Small Cells Wireless and Emerging Networking Siystem Laboratory

2. Toha Ardi Nugraha - IT Convergence Engineering- KIT Inter-Cell Interference Coordination in Heterogeneous Networks with Open Access of Small Cells Contents •Introduction •Problem Formulation •Previous Works •System Model •Simulation Results •Conclusion

3. Toha Ardi Nugraha - IT Convergence Engineering- KIT Inter-Cell Interference Coordination in Heterogeneous Networks with Open Access of Small Cells Heterogeneous Networks • Hetnets : different base station types, (Macrocell/eNB) and low power (Small-cells or home base stations (HeNB) • Macrocell : a wide area, • low power Small-cells : hot-spots and indoor (to offload traffic from the Macro-layer) Solution to boost the network capacity and increase of data traffic

4. Toha Ardi Nugraha - IT Convergence Engineering- KIT Inter-Cell Interference Coordination in Heterogeneous Networks with Open Access of Small Cells Small Cells • Shift from voice-only to voice- & data-based traffic • Improved technologies – smart antennas and MIMO, • Dead zone Problem – Poor indoor coverage • Solution – Small Cells – (YouTube : http://goo.gl/en8Gc8) • What is small cells? improved cellular/indoor coverage, capacity and applications (ex : SON – Self Organizing Networks, plug and play) • Type of small cells? Femtocells, picocells, metrocells and microcells

5. Toha Ardi Nugraha - IT Convergence Engineering- KIT Inter-Cell Interference Coordination in Heterogeneous Networks with Open Access of Small Cells Problem Formulation • High density of small cells • Problems : Interference between small cells • Solution?? Interference management : frequency reuse and preceding technique (MMSE and BD) Small cellSmall cell Small cellSmall cell Poor Signal Co-Channel Interference (same frequency) Small Cells Small Cells Small Cells

6. Toha Ardi Nugraha - IT Convergence Engineering- KIT Inter-Cell Interference Coordination in Heterogeneous Networks with Open Access of Small Cells Access Method Closed Access Open Access

7. Toha Ardi Nugraha - IT Convergence Engineering- KIT Inter-Cell Interference Coordination in Heterogeneous Networks with Open Access of Small Cells Previous Works and Proposed Scheme Parameter Previous Works Proposed Multi Cell Non-Cooperative Cooperative Cooperative (Clustering) Scheme Frequency Reuse Precoding : MMSE Precoding : BD Power Allocation Fractional Equal Power Water Filling Bandwidth Allocation Frequency Reuse (Weakness) Full Bandwidth Full Bandwidth Interference Cancellation Inter cell interference Inter user interference Inter user interference System Model Precoding : Pre define symbol before transmitting

8. Toha Ardi Nugraha - IT Convergence Engineering- KIT Inter-Cell Interference Coordination in Heterogeneous Networks with Open Access of Small Cells Interference cancelation in cooperative heterogeneous Network with coordination strategy. Contribution • Coordination strategy in Heterogeneous Network, consider : – Extended Block Diagonalization scheme (Applied in Heterogeneous Networks ) – Water filling power Allocation – Open Acess Method Proposed Scheme

9. Toha Ardi Nugraha - IT Convergence Engineering- KIT Inter-Cell Interference Coordination in Heterogeneous Networks with Open Access of Small Cells Power Allocation more power (low noise) Equal Power Water filling same power allocate to each channel Difference power allocate to each channel Problem : high interference (power) Give the more power when the channel is good

10. Toha Ardi Nugraha - IT Convergence Engineering- KIT Inter-Cell Interference Coordination in Heterogeneous Networks with Open Access of Small Cells System Model Parameter Value Number of small cells in cluster 2, 3, 4, 7 Number of neighbor cluster 1 Transmit Power of small cell 20 dBm/100 mW Precoding MMSE and BD Frequency Reuse Frequency Universal and Frequency Reuse Workload Performance • Number of Clustered Small Cells in Macrocells • Power allocation Sum rate capacity (data rate)

11. Toha Ardi Nugraha - IT Convergence Engineering- KIT Inter-Cell Interference Coordination in Heterogeneous Networks with Open Access of Small Cells SimulationResult

12. Toha Ardi Nugraha - IT Convergence Engineering- KIT Inter-Cell Interference Coordination in Heterogeneous Networks with Open Access of Small Cells Conclusions • Proposed Interference Coordination in Heterogeneous Networks • Power allocations : water filling > equal power allocation. • Precoding : BD > MMSE

13. Thank You Question? 감사합니다 Kumoh National Institute of Technology Thesis Presentation

Inter-Cell Interference Coordination in Heterogeneous Networks with Open Access of Small Cells

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