{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:OYXGG7FZCMKCYNIHNMH2KIDXQM","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":"73462000c4d571a549c68fa01f40feb017263e030db4147116a817b6b309feb4","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2016-08-03T19:28:37Z","title_canon_sha256":"7a02160ae1406f2ddc48590ffd6e3cd3c366d314e5e335a91379f34151171f44"},"schema_version":"1.0","source":{"id":"1608.01296","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1608.01296","created_at":"2026-05-18T01:02:51Z"},{"alias_kind":"arxiv_version","alias_value":"1608.01296v1","created_at":"2026-05-18T01:02:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.01296","created_at":"2026-05-18T01:02:51Z"},{"alias_kind":"pith_short_12","alias_value":"OYXGG7FZCMKC","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"OYXGG7FZCMKCYNIH","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"OYXGG7FZ","created_at":"2026-05-18T12:30:36Z"}],"graph_snapshots":[{"event_id":"sha256:a103f5795b51dfd2053a58b71a0a91d6ed8b30fba5f7d51fa395404ce56df851","target":"graph","created_at":"2026-05-18T01:02:51Z","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":"Soft noncoherent detection, which relies on calculating the \\textit{a posteriori} probabilities (APPs) of the bits transmitted with no channel estimation, is imperative for achieving excellent detection performance in high-dimensional wireless communications. In this paper, a high-performance belief propagation (BP)-based soft multiple-symbol differential detection (MSDD) framework, dubbed BP-MSDD, is proposed with its illustrative application in differential space-time block-code (DSTBC)-aided ultra-wideband impulse radio (UWB-IR) systems. Firstly, we revisit the signal sampling with the aid ","authors_text":"Chanfei Wang, Hui Gao, Shaoshi Yang, Tiejun Lv","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2016-08-03T19:28:37Z","title":"A Belief Propagation Based Framework for Soft Multiple-Symbol Differential Detection"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.01296","kind":"arxiv","version":1},"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":"sha256:230f70fd84011d4e0a46953fb451f752e4d334948eae7cc7c93f0c6245062c11","target":"record","created_at":"2026-05-18T01:02:51Z","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":"73462000c4d571a549c68fa01f40feb017263e030db4147116a817b6b309feb4","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2016-08-03T19:28:37Z","title_canon_sha256":"7a02160ae1406f2ddc48590ffd6e3cd3c366d314e5e335a91379f34151171f44"},"schema_version":"1.0","source":{"id":"1608.01296","kind":"arxiv","version":1}},"canonical_sha256":"762e637cb913142c35076b0fa52077833127892d1708d7af1fe7679d3affcc31","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"762e637cb913142c35076b0fa52077833127892d1708d7af1fe7679d3affcc31","first_computed_at":"2026-05-18T01:02:51.862326Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:02:51.862326Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IZbmd/ZHb/CvXxL0gKFg7IMGqEXH7YH8ZUjvhHS4Whfm8sVtAvhV+CgjqyrGTKzt2SF4qau2B8+TGKNLBSfoAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:02:51.862682Z","signed_message":"canonical_sha256_bytes"},"source_id":"1608.01296","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:230f70fd84011d4e0a46953fb451f752e4d334948eae7cc7c93f0c6245062c11","sha256:a103f5795b51dfd2053a58b71a0a91d6ed8b30fba5f7d51fa395404ce56df851"],"state_sha256":"75964466ae5b4ae1ad3463af69c02a67d489902e0847cb94da35159be8fcb661"}