Articles

Faunus: A Non-Blocking Distributed B+Tree Index for RDMA-Based Disaggregated Memory

Abstract: Disaggregated memory (DM) architectures decouple compute servers (CSs) from memory servers (MSs) and rely on RDMA to provide low-latency access to remote memory. Building an efficient distributed B+Tree index for DM key–value (KV) stores is challenging: insert, delete, and...

Towards Wi-Fi 8 Ultra-High Reliability: Null Steering Using Data-Embedded Pilots

Abstract: The IEEE 802.11bn (Wi-Fi-8) WLAN standard targets Ultra High Reliability (UHR). Embedding additional pilots within the frame’s data enables timely and effective interference mitigation via adaptive null steering, significantly improving link throughput under dynamic interference, advancing UHR in next...

Tempranillo: Non-Speculative Early Register Release

Abstract: Limited by the breakdown of technology scaling, CPU architects are looking for creative solutions to deliver performance improvements while unable to traditionally scale up microarchitectural structures. One promising approach is engineering a microarchitecture that uses resources more efficiently, for...

MIMO Detection via Gaussian Mixture Expectation Propagation: A Bayesian Machine Learning Approach for High-Order High-Dimensional MIMO Systems

MIMO systems can simultaneously transmit multiple data streams within the same frequency band, thus exploiting the spatial dimension to enhance performance. MIMO detection poses considerable challenges due to the interference and noise introduced by the concurrent transmission of multiple streams. Efficient Uplink...

To Cross, or Not to Cross Pages for Prefetching?

Despite processor vendors reporting that cache prefetchers operating with virtual addresses are permitted to cross page boundaries, academia is focused on optimizing cache prefetching for patterns within page boundaries. This work reveals that page-cross prefetching at the first-level data cache...

AP cooperation in Wi-Fi: Joint transmission with a novel precoding scheme, resilient to phase offsets between transmitters

Multi Access-Point (M-AP) cooperation is expected to play a key role in the next-generation Wi-Fi standard (namely the upcoming IEEE WLAN 802.11bn/UHR, dubbed Wi-Fi-8), particularly in dense deployments where inter-cell interference hinders further increase in network capacity. Among the various...

Universal Virtual Lab for Fast and Accurate Performance Assessments in Nonlinear DWDM Systems with Digital Subcarrier Multiplexing

An extended Universal Virtual Lab method is presented for performance assessments of nonlinear DWDM links using 800 Gb/s digital subcarrier multiplexed channels, while accounting for NLIN correlation properties, Tx\Rx imperfections and adaptive equalization algorithms. We report accuracy errors below 0.08...

Israeli Systems Workshop – September 25, 2024 Accepted Posters

We are delighted to announce the posters that have been accepted to the Israeli Systems Workshop 2024

Cheap & Fast File-aaS for AI by Combining Scale-out Virtiofs, Block layouts and Delegations

File service Supply & Demand forces are changing: on the demand side, AI has significantly increased single-tenant File-aaS performance requirements.