{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:QKTRXPX4SAGVOMPS65L72KYGEC","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"107ab754c9dad17e08d4a7962c7e9261a15124ef3725e04055d1bce44f609dda","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2015-06-11T17:02:35Z","title_canon_sha256":"08eeea37e98ea5605cd256179fbfd1b9c0f6d63a20815c7c2f5bdee219fb2b7e"},"schema_version":"1.0","source":{"id":"1506.03744","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.03744","created_at":"2026-05-18T01:49:55Z"},{"alias_kind":"arxiv_version","alias_value":"1506.03744v2","created_at":"2026-05-18T01:49:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.03744","created_at":"2026-05-18T01:49:55Z"},{"alias_kind":"pith_short_12","alias_value":"QKTRXPX4SAGV","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_16","alias_value":"QKTRXPX4SAGVOMPS","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_8","alias_value":"QKTRXPX4","created_at":"2026-05-18T12:29:37Z"}],"graph_snapshots":[{"event_id":"sha256:4c9e3bc7ccc67628ce24fbd029314f5ddf31bdda825104d3125e918306edebb6","target":"graph","created_at":"2026-05-18T01:49:55Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"The expected operating scenarios of 5G pose a great challenge to orthogonal frequency division multiplexing (OFDM) which has poor out of band (OoB) spectral properties, stringent synchronization requirements, and large symbol duration. Generalized frequency division multiplexing (GFDM) which is the focus of this work, has been suggested in the literature as one of the possible solutions to meet 5G requirements. In this work, the analytical performance evaluation of MMSE receiver for GFDM is presented. We also proposed precoding techniques to enhance the performance of GFDM. A simplified expres","authors_text":"Kalyan Kumar Bandyopadhyay, Shashank Tiwari, Suvra Sekhar Das","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2015-06-11T17:02:35Z","title":"Precoded GFDM System to Combat Inter Carrier Interference : Performance Analysis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.03744","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:177269461bc7839b2ce7e936f661ba0284930b05cda9abcf39ceaf326bc8281e","target":"record","created_at":"2026-05-18T01:49:55Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"107ab754c9dad17e08d4a7962c7e9261a15124ef3725e04055d1bce44f609dda","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2015-06-11T17:02:35Z","title_canon_sha256":"08eeea37e98ea5605cd256179fbfd1b9c0f6d63a20815c7c2f5bdee219fb2b7e"},"schema_version":"1.0","source":{"id":"1506.03744","kind":"arxiv","version":2}},"canonical_sha256":"82a71bbefc900d5731f2f757fd2b0620bd936775b046b384a9ea9442cab07e92","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"82a71bbefc900d5731f2f757fd2b0620bd936775b046b384a9ea9442cab07e92","first_computed_at":"2026-05-18T01:49:55.409359Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:49:55.409359Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4Qf/DS/C4+NAOGKRJfOY1KX6IGm9RQ2pxrYihbPJlVS1zWM+00umtcphTXsNDnPGA9Biu0U5bEWLMnjarETxCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:49:55.409916Z","signed_message":"canonical_sha256_bytes"},"source_id":"1506.03744","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:177269461bc7839b2ce7e936f661ba0284930b05cda9abcf39ceaf326bc8281e","sha256:4c9e3bc7ccc67628ce24fbd029314f5ddf31bdda825104d3125e918306edebb6"],"state_sha256":"71aa2f6df114db67e9e60ddfd5437a01ee4ddd9293e5842e73dee8251f2a9b61"}