Sizing of the physical layer of a RF intra-chip communications

Hamieh, Mohamad; Ariaudo, Myriam; Quintanel, Sébastien; Louët, Yves

doi:10.1109/icecs.2014.7049947

Cited by 8 publications

(11 citation statements)

References 13 publications

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“…Provided converter technology by our partner NXP envisions a 20 GHz bandwidth for the system. Based on the design constraints and circuit simulations, most suitable spectrum is chosen between 20-40 GHz (Hamieh et al, 2014). It is decided to have 1024 subcarriers, thus 1024point FFT and IFFT blocks are required.…”

Section: Ofdma Based Rf Interconnectmentioning

confidence: 99%

“…It was shown that WiNoCoD interconnect has a 0.2-0.3 dB/mm attenuation with distance over 20-40 GHz band. These results are derived in the scope of WiNoCoD project (Briere et al, 2015;Hamieh at al., 2014).…”

Section: Ofdma Based Rf Interconnectmentioning

confidence: 99%

“…For BPSK and QPSK. By using the assumption made in (Hamieh et al, 2014), a noise factor, F of 3 dB is used, which is approximately 2 in linear scale. Therefore, the linear noise power density can be calculated from the -174 dBm and the additional 3 dB noise factor as: The placement of tilesets with their ID number is shown on Fig.…”

Section: Rf Interconnect Capacity Derivationmentioning

confidence: 99%

See 2 more Smart Citations

Capacity Analysis of Radio Frequency Interconnect for Manycore Processor Chips

Palicot

Louët

Unlu

et al. 2016

Proceedings of the Fifth International Conference on Telecommunications and Remote Sensing

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We study here the case of a 2048 cores chip, where cores are spread into 32 tilesets of 16 tiles containing 4 cores each. Each of the 32 tilesets has a RF access point to the serpentine transmission line across the chip. Inside tilesets, a 2-D mesh is used between the 16 tiles where a crossbar switch joints 4 cores, one RAM block and one DMA unit. Total 1 Terabytes memory is physically distributed into all tiles but logically shared between all cores and managed by a distributed hybrid cache coherency protocol (DHCCP). From the RF-NoC point of view, a 20 GHz bandwidth between 20 and 40 GHz is shared into 1024 carriers between all 32 RF access nodes. The novelty of our work is that we have derived, in previous publications, algorithms able to dynamically share the RF resources between the 32 nodes. It has been stated by simulations that the channel transfer function is flat in the 20-40 GHz frequency band and just depends on the distance between nodes. The scope of this paper is to make a capacity analysis on the different links between nodes and to derive mean capacity evaluation of the RF NoC. We state that only-42 dBm of transmission power on the RF line is necessary to reach a 6 bits/s/Hz spectral efficiency.

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Section: Ofdma Based Rf Interconnectmentioning

confidence: 99%

Section: Ofdma Based Rf Interconnectmentioning

confidence: 99%

Section: Rf Interconnect Capacity Derivationmentioning

confidence: 99%

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Capacity Analysis of Radio Frequency Interconnect for Manycore Processor Chips

Palicot

Louët

Unlu

et al. 2016

Proceedings of the Fifth International Conference on Telecommunications and Remote Sensing

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“…Moreover, design and sizing of RF elements for RF-NoC architectures based on waveguides have already been proposed in the literature, demonstrating the feasibility of the approach. The interested reader could find more details in [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Framework for Design Exploration and Performance Analysis of RF-NoC Manycore Architecture

Lahdhiri

Lorandel

Monteleone

et al. 2020

JLPEA

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The Network-on-chip (NoC) paradigm has been proposed as a promising solution to enable the handling of a high degree of integration in multi-/many-core architectures. Despite their advantages, wired NoC infrastructures are facing several performance issues regarding multi-hop long-distance communications. RF-NoC is an attractive solution offering high performance and multicast/broadcast capabilities. However, managing RF links is a critical aspect that relies on both application-dependent and architectural parameters. This paper proposes a design space exploration framework for OFDMA-based RF-NoC architecture, which takes advantage of both real application benchmarks simulated using Sniper and RF-NoC architecture modeled using Noxim. We adopted the proposed framework to finely configure a routing algorithm, working with real traffic, achieving up to 45% of delay reduction, compared to a wired NoC setup in similar conditions.

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“…Multi-hop paths replaced by single hop links [5], [8] Challenges thermal issue because of high-power density…”

Section: Introductionmentioning

confidence: 99%

Threshold-based routing algorithm for RF-NoC OFDMA architecture

Lahdhiri

Lorandel

Bourdel

2019

2019 14th International Symposium on Reconfigurable Communication-Centric Systems-on-Chip (ReCoSoC)

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Network-on-chip (NoC) is currently the chosen paradigm for interconnection in multicore architectures. On the other hand, the development of these architectures with thousands of cores leads to several issues regarding latency and power consumption, especially with conventional wired interconnects. Moreover, they do not support specific features like broadcast and multicast. Radio-Frequency NoC based on OFDMA seems an appropriate solution to overcome such issues, providing low latency for long communications and a significant communication bandwidth with a high spectral efficiency. It also permits a dynamic allocation of the available bandwidth among the different elements of the NoC, according to the communication needs. The routing algorithm has a significant impact on the overall performance of a RF-NoC, by diffusing the traffic in a suitable way between the wired and the wireless paths in order to improve the throughput and reduce the latency. In this paper, a threshold-based routing algorithm is proposed and evaluated for a 32×32 RF-NoC OFDMA architecture with 32 concurrent wireless channels. We demonstrate the importance to finely tune the threshold parameter to achieve a certain level of performance. Simulation results show a significant improvement in terms of latency and throughput.

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Sizing of the physical layer of a RF intra-chip communications

Cited by 8 publications

References 13 publications

Capacity Analysis of Radio Frequency Interconnect for Manycore Processor Chips

Capacity Analysis of Radio Frequency Interconnect for Manycore Processor Chips

Framework for Design Exploration and Performance Analysis of RF-NoC Manycore Architecture

Threshold-based routing algorithm for RF-NoC OFDMA architecture

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