Marwan Jalaleddine

PhD Candidate in Electrical Engineering at McGill University

Working on Error-correcting codes

Open to industry and academic positions starting in 2027

I am a PhD candidate in Electrical Engineering at McGill University, where I work in the Integrated Systems for Information Processing (ISIP) Lab under the supervision of Prof. Warren J. Gross. My research is on modern error-correcting codes for 5G and 6G communication systems.

My work spans guessing random additive noise decoding (GRAND), ordered statistics decoding, polar codes, optimization-based decoders, and machine learning decoders, with an emphasis on algorithms that map well to efficient hardware. I co-authored the Springer book Guessing Random Additive Noise Decoding: A Hardware Perspective, and I have been a teaching assistant for computer organization and digital systems courses at McGill since 2020.

I am looking for industry or academic positions starting in 2027 in channel coding, digital communications, decoder hardware, and machine learning for communications.

Research

Universal decoding (GRAND & OSD)

Code-agnostic decoders that guess the noise rather than the codeword, including GRAND variants and partial ordered statistics decoding with better error patterns.

Polar codes & HARQ

Successive-cancellation and list decoders for polar codes, and making incremental-redundancy HARQ practical for them.

Decoder hardware (VLSI)

High-throughput, energy-efficient decoder architectures, from algorithm–hardware co-design to ASIC and FPGA results.

Optimization-based decoding

Casting decoding as an optimization problem, using QUBO formulations and simulated annealing.

19 Publications
342 Citations
1 Springer book
1 US patent

News

Nov 04, 2025 US patent granted: “Polar decoder and associated method” (US 12,463,747 B2), an optimization-based polar decoder developed with Huayi Zhou, Ryan Seah, and Warren J. Gross.
Jun 01, 2025 Paper accepted at ICC 2025: “Hardware-friendly IR-HARQ for Polar SCL Decoders”
Sep 15, 2024 Published in IEEE TCOMM: “Reduced-Complexity Projection-Aggregation List Decoder for Reed-Muller Codes”
Jul 01, 2024 Published in IEEE JSAC: “Decoding of Polar Codes Using Quadratic Unconstrained Binary Optimization”

Compare decoders

Pick decoders and a code to compare frame error rate against area, throughput and energy, scaled to a common technology node.

Hardware

Error-rate performance

    Metrics and scaling rules

    For a design with throughput \(T\) (Gb/s), area \(A\) (mm²) and power \(P\) (mW), built in node \(n_1\) at supply \(V_1\):

    $$\mathrm{AE} = \frac{T}{A}\ \left[\tfrac{\mathrm{Gb/s}}{\mathrm{mm}^2}\right], \qquad \mathrm{EE} = \frac{P}{T}\ \left[\tfrac{\mathrm{pJ}}{\mathrm{bit}}\right]$$

    Scaling to node \(n_2\) and supply \(V_2\) uses the area and energy factors

    $$S_A = \left(\frac{n_2}{n_1}\right)^{2}, \qquad S_E = \left(\frac{V_2}{V_1}\right)^{2}\left(\frac{n_2}{n_1}\right)^{2}$$

    so that

    $$A' = S_A\,A, \qquad \mathrm{AE}' = \frac{\mathrm{AE}}{S_A}, \qquad \mathrm{EE}' = S_E\,\mathrm{EE}, \qquad P' = S_E\,P, \qquad T' = T.$$

    Throughput is not scaled. Energy needs \(V_1\), so designs without a reported supply voltage drop out of energy and power plots while scaling is on. These are first-order CMOS rules (C.-H. Lin et al., IEEE TCAS-I, 2009). Treat scaled values as rough estimates.

    Diamonds have a full FER curve. When only the Eb/N0 at FER = 10-5 is known, it is drawn as a cross. Each selected design gets a card under the plots with its full details and notes, and the last column of the table holds the notes too (click a note to expand it). The page address keeps your selection, so you can share a comparison.

    Selected publications All publications →

    1. Preprint
      A Universal Systematic Method to Generate Error Patterns on Memoryless Channels
      Marwan Jalaleddine, Jiajie Li, Syed Mohsin Abbas, and Warren J Gross
      2026
    2. COMML
      Enabling Fast Polar SC Decoding with IR-HARQ
      Marwan Jalaleddine, Mohamad Ali Jarkas, Jiajie Li, and Warren J Gross
      IEEE Communications Letters, 2026
    3. ICC
      Hardware-friendly IR-HARQ for Polar SCL Decoders
      Marwan Jalaleddine, Jiajie Li, and Warren J Gross
      In 2025 IEEE International Conference on Communications, 2025
    4. ISIT
      Partial Ordered Statistics Decoding with Enhanced Error Patterns
      Marwan Jalaleddine, Huayi Zhou, Jiajie Li, and Warren J Gross
      In IEEE International Symposium on Information Theory, 2023