Third generation (3G) mobile communications systems

Garg, Vijay K.; Halpern, S.W.; Smolik, Kenneth

doi:10.1109/icpwc.1999.759581

Cited by 14 publications

(7 citation statements)

References 4 publications

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“…Next was the introduction of 3G (third generation) mobile networks in the early 2000s, which marked a significant advancement in mobile technology, providing both voice and data services [ 18 ]. These networks offered elevated data transfer speeds and the capability of web browsing on mobile devices.…”

Section: Technological Foundations Of 6g Network and Ai Revolutionmentioning

confidence: 99%

6G Networks and the AI Revolution—Exploring Technologies, Applications, and Emerging Challenges

Chataut,

Nankya,

Akl

2024

Sensors

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In the rapidly evolving landscape of wireless communication, each successive generation of networks has achieved significant technological leaps, profoundly transforming the way we connect and interact. From the analog simplicity of 1G to the digital prowess of 5G, the journey of mobile networks has been marked by constant innovation and escalating demands for faster, more reliable, and more efficient communication systems. As 5G becomes a global reality, laying the foundation for an interconnected world, the quest for even more advanced networks leads us to the threshold of the sixth-generation (6G) era. This paper presents a hierarchical exploration of 6G networks, poised at the forefront of the next revolution in wireless technology. This study delves into the technological advancements that underpin the need for 6G, examining its key features, benefits, and key enabling technologies. We dissect the intricacies of cutting-edge innovations like terahertz communication, ultra-massive MIMO, artificial intelligence (AI), machine learning (ML), quantum communication, and reconfigurable intelligent surfaces. Through a meticulous analysis, we evaluate the strengths, weaknesses, and state-of-the-art research in these areas, offering a wider view of the current progress and potential applications of 6G networks. Central to our discussion is the transformative role of AI in shaping the future of 6G networks. By integrating AI and ML, 6G networks are expected to offer unprecedented capabilities, from enhanced mobile broadband to groundbreaking applications in areas like smart cities and autonomous systems. This integration heralds a new era of intelligent, self-optimizing networks that promise to redefine the parameters of connectivity and digital interaction. We also address critical challenges in the deployment of 6G, from technological hurdles to regulatory concerns, providing a holistic assessment of potential barriers. By highlighting the interplay between 6G and AI technologies, this study maps out the current landscape and lights the path forward in this rapidly evolving domain. This paper aims to be a cornerstone resource, providing essential insights, addressing unresolved research questions, and stimulating further investigation into the multifaceted realm of 6G networks. By highlighting the synergy between 6G and AI technologies, we aim to illuminate the path forward in this rapidly evolving field.

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Section: Technological Foundations Of 6g Network and Ai Revolutionmentioning

confidence: 99%

6G Networks and the AI Revolution—Exploring Technologies, Applications, and Emerging Challenges

Chataut,

Nankya,

Akl

2024

Sensors

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“…Sendo assim, o móvel pode se conectar simultaneamente com três estações base distintas no processo de soft handoff. Nas regiões de sobreposição entre células, que em geral acontece nas bordas das células [2], este processo de soft handoff provê diversidade no canal de tráfego direto (base-móvel), através do RAKE receiver no móvel, e no canal de tráfego reverso (móvel-base), através da recepção de duas ou três estações base. Esta diversidade obtida no enlace reverso é muito importante na redução da interferência, pois possibilita que o móvel transmita com menor potência.…”

Section: Processo De Soft Handoffunclassified

“…Na região de sobreposição existe comunicação simultânea de duas ou mais BTSs com o móvel. Este tipo de soft handoff é o mais freqüentemente tratado na literatura [2]. A identificação de um piloto pelo móvel se baseia no fato de o piloto possuir uma fase diferente de uma mesma seqüência PN (Pseudo Noise).…”

Section: Processo De Soft Handoffunclassified

“…Em teoria, o soft handoff não influencia no cálculo da capacidade do enlace reverso, já que os móveis nesta condição transmitem estando ou não em soft handoff. Esta condição porém pode ser alterada se a potência do móvel for reduzida em função da diversidade com duas bases [1] [2]. Já o mesmo não se pode dizer com relação ao enlace direto.…”

Section: Introductionunclassified

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Metodologia de dimensionamento de canais para Soft Handoff em sistemas CDMA

Branquinho¹,

Yacoub²

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Dedico esta tese a Ellen, Omar, Rafael e Helena, esposa e filhos, razão de todo meu esforço. Nada se consegue sem esforço e sem renúncia. Foram estas pessoas que sentiram minha ausência, em incontáveis fins de semana sem minha atenção. Acredito que tenha valido a pena. iv ResumoEste trabalho objetiva o desenvolvimento de uma metodologia de dimensionamento de canais para soft handoff em sistemas CDMA. O planejamento de sistemas móveis celulares CDMA tem características que o distinguem do planejamento de outras técnicas de acesso.As metodologias disponíveis atualmente para o planejamento ou são muito complexas e com considerações que se contrastam, com um nível de sofisticação que não condiz com o grau do empirismo dos parâmetros, ou são muito simples mas pouco rigorosas. Esta tese tem por objetivo a proposta de um metodologia, simples e de fácil aplicação, de dimensionamento de canais de soft handoff, que leve em conta tanto a questão do bloqueio de soft handoff, quanto a influência destes canais na interferência. Para desenvolvimento desta metodologia são considerados os arranjos de duas e três células. Para estes dois arranjos são obtidas as probabilidades de bloqueio de soft handoff e outage. Estas probabilidades são empregadas no dimensionamento de sistemas CDMA. A técnica de dimensionamento proposta é comparada com as técnicas usualmente utilizadas.

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“…In wired networks, Asynchronous Transfer Mode (ATM) [10] is one of the technologies aiming at this goal. As for wireless networks, we also have witnessed the current mobile communication systems, e.g., Generalized Packet Radio Service (GPRS) [5] and the future mobile communication systems, e.g., the third generation (3G) system [6] (or even in the beyond 3G (B3G) system [14] or in the fourth generation (4G) system [12]) offer integrated services to satisfy diverse requirements of different users who want to run multimedia applications on their own handsets.…”

Section: Introductionmentioning

confidence: 99%

Channel allocation and performance study for the integrated GSM/GPRS system

Ferng

Tsai

2003 IEEE Wireless Communications and Networking, 2003. WCNC 2003.

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We propose dynamic channel allocation schemes which employ techniques such as channel reservation, service priority and queueing strategies (with or without threshold control) etc. Using these techniques allows system designers to differentiate Quality of Service (QoS) requirements (e.g., new call blocking/handoff forced termination probability and delay) required by different types of service. Via the simulation approach, the improvements offered by different strategies under different parameter sets and different network situations are investigated. The results obtained in this paper provide system designers guidelines of how to provide an excellent channel allocation scheme and how to choose suitable parameters in the integrated GSM and GPRS system.

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Third generation (3G) mobile communications systems

Cited by 14 publications

References 4 publications

6G Networks and the AI Revolution—Exploring Technologies, Applications, and Emerging Challenges

6G Networks and the AI Revolution—Exploring Technologies, Applications, and Emerging Challenges

Metodologia de dimensionamento de canais para Soft Handoff em sistemas CDMA

Channel allocation and performance study for the integrated GSM/GPRS system

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