{"id":"W2098435973","doi":"10.1109/vetecs.2003.1207605","title":"Variable-rate OFDM systems with selective antenna diversity and adaptive modulation","year":2004,"lang":"en","type":"article","venue":"","topic":"Advanced Wireless Communication Techniques","field":"Engineering","cited_by":12,"is_retracted":false,"has_abstract":true,"ca_institutions":"Concordia University","funders":"Natural Sciences and Engineering Research Council of Canada","keywords":"Orthogonal frequency-division multiplexing; Link adaptation; Fading; Computer science; Block code; Electronic engineering; Coding (social sciences); Space–time block code; Spectral efficiency; Antenna (radio); Modulation (music); Telecommunications; Engineering; Decoding methods; Mathematics; Channel (broadcasting); Physics; Acoustics","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0005048487,0.0005005059,0.0005104627,0.0002814673,0.0003315131,0.0005089675,0.0006742178,0.000521919,0.0007991178],"category_scores_gemma":[0.001037522,0.0001899873,0.000174001,0.0005723248,0.0004008336,0.0008840907,0.000517093,0.0005910379,0.0004526053],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.000266773,"about_ca_system_score_gemma":0.0003181485,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00053337,"about_ca_topic_score_gemma":0.001096595,"domain_scores_codex":[0.9995713,0.0001291969,0.00002307956,0.00005998785,0.0001464114,0.00006995468],"domain_scores_gemma":[0.999542,0.0001488478,0.00008538803,0.00008627245,0.0001112,0.0000263225],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"design_other","study_design_gemma":"simulation_or_modeling","study_design_scores_codex":[0.001277043,0.0002723252,0.004164085,0.0003942226,0.0002555562,0.000964665,0.0004243278,0.1405674,0.1911557,0.07973718,0.00372883,0.5770586],"study_design_scores_gemma":[0.0002537536,0.0009303963,0.001748034,0.00004576231,0.0001670568,0.001532254,0.00007277392,0.9196627,0.03936724,0.01871879,0.01741736,0.0000837843],"study_design_candidate":"simulation_or_modeling","study_design_consensus":null,"genre_codex":"methods","genre_gemma":"empirical","genre_scores_codex":[0.1519753,0.002728856,0.8362601,0.0002956866,0.0002251885,0.0001195542,0.00006484396,0.0004825156,0.007848028],"genre_scores_gemma":[0.8370366,0.0009284883,0.158223,0.0001015207,0.0002662913,0.00009955402,0.00009152788,0.00001139995,0.00324165],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.0007991178,"threshold_uncertainty_score":0.002673328,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01235050278122039,"score_gpt":0.193365208766311,"score_spread":0.1810147059850906,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}