{"id":"W2144247727","doi":"10.1109/tvt.2008.923655","title":"A Comparison of Frequency-Domain Block MIMO Transmission Systems","year":2009,"lang":"en","type":"article","venue":"IEEE Transactions on Vehicular Technology","topic":"Advanced Wireless Communication Techniques","field":"Engineering","cited_by":38,"is_retracted":false,"has_abstract":true,"ca_institutions":"Carleton University","funders":"","keywords":"MIMO; Orthogonal frequency-division multiplexing; Cyclic prefix; Electronic engineering; MIMO-OFDM; Equalization (audio); Computer science; Intersymbol interference; Frequency domain; Bit error rate; Transmission (telecommunications); Multiplexing; Multi-user MIMO; Channel (broadcasting); Telecommunications; Engineering","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0000822431,0.0002178247,0.0004133405,0.0005697449,0.00009770945,0.00000788663,0.0004401813,0.0004177381,0.00001051811],"category_scores_gemma":[0.000002051328,0.0002299183,0.0001058902,0.0006700027,0.000112254,0.0000851189,8.397906e-7,0.0005992308,0.00001203467],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00009820484,"about_ca_system_score_gemma":0.00001390229,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.000005973021,"about_ca_topic_score_gemma":0.000003736002,"domain_scores_codex":[0.9988365,0.00004107388,0.0004995289,0.0002039416,0.0001726237,0.0002462944],"domain_scores_gemma":[0.9989843,0.00003534629,0.00007600991,0.0007816675,0.00007056828,0.00005210669],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.00001412229,0.0003418792,0.00001807064,0.00007467958,0.00006320565,0.000006381142,0.0002025906,0.2418121,0.6810355,0.004429731,0.00007082809,0.07193094],"study_design_scores_gemma":[0.0003768768,0.000352484,0.00002015402,0.0002037093,0.00003133643,0.00003420991,0.0002273562,0.04317947,0.9479737,0.004843338,0.002454642,0.0003027417],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"methods","genre_gemma":"empirical","genre_scores_codex":[0.09785912,0.001628573,0.8970801,0.000330014,0.0001020537,0.000345723,0.000009562961,0.002163305,0.0004815307],"genre_scores_gemma":[0.9622409,0.0003503457,0.0372596,0.0000128923,0.000005699428,0.00008189234,0.000002451117,0.0000331059,0.00001316728],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.8643817,"threshold_uncertainty_score":0.9375796,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01274369984657209,"score_gpt":0.2717354678017144,"score_spread":0.2589917679551423,"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."}}