Hengjia Wei

collaborators

Showing cs.ITShow all

4 papers · 1 filter

cs.IT2026

Random Algebraic Geometry Codes Approach the Half-Singleton Bound for Insertions and Deletions

Zhihao Guan, Hengjia Wei

In this paper, we study the performance of algebraic geometry (AG) codes against adversarial insertion-deletion (insdel) errors. The half-Singleton bound states that an $[n, k]_{q}$ l…

cs.IT2026

The Optimal Asymptotic Rate of Generalized Covering Codes

Hengzhuo Li, Chong Shangguan, Hengjia Wei

Let $G_{q}$ be an alphabet of size $q \geq 2$ . We determine the optimal asymptotic rate of generalized covering codes $C \subseteq G_{q}^{n}$ , whose covering centers in $G_{q}^{t \times n}$ ar…

cs.IT2026

Sharp Bounds and New Constructions for Single-Error Detection and Correction in Analog Codes

Hengzhuo Li, Zhengjie Jian, Xin Wang +1

We study single-error detection and correction for analog codes over $R$ . The key performance measures are the parameters $Γ_{1} (C)$ and $Γ_{2} (C)$ , which…

cs.IT2026

Elias-type Bounds for Codes in the Symmetric Limited-Magnitude Error Channel

Zhihao Guan, Hengjia Wei

We study perfect error-correcting codes in $Z^{n}$ for the symmetric limited-magnitude error channel, where at most $e$ coordinates of an integer vector may be altered by a…