OpenAI launches GPT‑5.3‑Codex‑Spark, a Cerebras-powered, ultra-low-latency coding model that claims 15x faster generation speeds, signaling a major inference shift beyond Nvidia as the company faces ...

Abstract: The orthogonal frequency division multiplexing with index modulation (OFDM-IM) is a research topic attracting attention due to its ability to enhance efficiency by carrying additional bits.