Sharp Minimum-Rate Guarantees for Power-Based Discrete RIS Design

arXiv eess.SP2026-11-06 13:000 views

arXiv:2611.07548v1 Announce Type: new Abstract: We characterise when desired-power optimisation guarantees the minimum user rate (MUR) in discrete reconfigurable intelligent surface systems with fixed precoding. For the weighted sum of desired powers, a bounded channel exists whose exact maximiser starves a user: no positive guarantee exists. For the minimum desired power, the retained fraction of the optimal MUR is at least a sharp constant set by the phase's power quality and residual interference. A semidefinite dual certifies it without enumerating phases. Minimum-power phases keep 88% of the optimum under weak reflection and about half under strong reflection; omitted interference causes most of the loss.

Source：https://arxiv.org/abs/2611.07548

My favorites

PreviousA Novel BVH-accelerated Dynamic Ray-Tracing Channel Model for Vehicular Communication Systems NextWhen Does Inter-BS Interference Hurt Sensing in ISAC? An Exact Fisher Information Analysis under Finite-Alphabet Interference

I don't think engineers will exist in a few years

I know how that sounds. I'm an engineer. I've built hardware and software at Tesla, shipped software at J.P. Morgan, and

0dev.to AI

I asked 4 top AI models (Claude, ChatGPT, Gemini, AI Overview) to build a video automation script. They all lied. Here is the proof.

Title (Naslov) Klikni na ono veliko polje gde piše New post title here... i zalepi tačno ovo: I asked 4 top AI models (C

0dev.to AI

ElevenLabs cost per minute: $0.072 to speak, $0.080 as an agent — and $0.075 at Deepgram

The same $22 ElevenLabs plan reads as 275,000 characters on its API page and 121,000 credits on the pricing page beside

0dev.to AI

An AI agent directory reviewed my free website builder: 8/10, and one fair hit

TapToAgent , a directory of free AI agents, just listed openconstructor , my free, open-source AI interface builder, and

0dev.to AI

Textract vs Bedrock Data Automation vs Vision LLMs on Invoice Photos: 140 Images and a 6-Page Invoice, Real Calls

Invoices from the field rarely arrive as clean PDFs. They arrive as phone photos: the invoice lying on a stack of other

0dev.to Python

Sources: Jensen Huang hired crisis communications firm Heller as early as October 2025; an NYT report in October 2025 on his Megaspeed ties caused tensions (Lauren Goode/Wired)

Lauren Goode / Wired : Sources: Jensen Huang hired crisis communications firm Heller as early as October 2025; an NYT re

0Techmeme

Sharp Minimum-Rate Guarantees for Power-Based Discrete RIS Design

Related posts

I don't think engineers will exist in a few years

I asked 4 top AI models (Claude, ChatGPT, Gemini, AI Overview) to build a video automation script. They all lied. Here is the proof.

ElevenLabs cost per minute: $0.072 to speak, $0.080 as an agent — and $0.075 at Deepgram

An AI agent directory reviewed my free website builder: 8/10, and one fair hit

Textract vs Bedrock Data Automation vs Vision LLMs on Invoice Photos: 140 Images and a 6-Page Invoice, Real Calls

Sources: Jensen Huang hired crisis communications firm Heller as early as October 2025; an NYT report in October 2025 on his Megaspeed ties caused tensions (Lauren Goode/Wired)