{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:46Y6XKQJSXM6V6USLTSKUBWMYM","short_pith_number":"pith:46Y6XKQJ","canonical_record":{"source":{"id":"1709.04450","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2017-09-13T17:51:39Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"32ab3ce4faae0b6a2cae77bd354955d8942ad22ecc11a7c42895afd487e01e7c","abstract_canon_sha256":"69c0d18826d6febc1c23e5359bc6860a2137a8838938f1653400904e0577e74f"},"schema_version":"1.0"},"canonical_sha256":"e7b1ebaa0995d9eafa925ce4aa06ccc33deddf8342e8954a7ed0b2e6223b03f0","source":{"kind":"arxiv","id":"1709.04450","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.04450","created_at":"2026-05-18T00:35:14Z"},{"alias_kind":"arxiv_version","alias_value":"1709.04450v1","created_at":"2026-05-18T00:35:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.04450","created_at":"2026-05-18T00:35:14Z"},{"alias_kind":"pith_short_12","alias_value":"46Y6XKQJSXM6","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"46Y6XKQJSXM6V6US","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"46Y6XKQJ","created_at":"2026-05-18T12:30:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:46Y6XKQJSXM6V6USLTSKUBWMYM","target":"record","payload":{"canonical_record":{"source":{"id":"1709.04450","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2017-09-13T17:51:39Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"32ab3ce4faae0b6a2cae77bd354955d8942ad22ecc11a7c42895afd487e01e7c","abstract_canon_sha256":"69c0d18826d6febc1c23e5359bc6860a2137a8838938f1653400904e0577e74f"},"schema_version":"1.0"},"canonical_sha256":"e7b1ebaa0995d9eafa925ce4aa06ccc33deddf8342e8954a7ed0b2e6223b03f0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:35:14.327529Z","signature_b64":"fqntcLPWXvF5j8v3UBuztdjvfeu6i30kswl1uZ+uPs3aWmQy1ovufR17XLGzYPtDtRjYhgvIHq/WeLlCToH9Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e7b1ebaa0995d9eafa925ce4aa06ccc33deddf8342e8954a7ed0b2e6223b03f0","last_reissued_at":"2026-05-18T00:35:14.327014Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:35:14.327014Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1709.04450","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:35:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F2nExJxwH97WpPEVS3V5WePcVi2CTeNrUwIj5xUBJT5qQ6nHxqUJc2g97iZKcIqtU5xcsFeetEa7+qPVYPiHDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T21:21:41.918999Z"},"content_sha256":"77ae371d26cd1a9f9b3927d3f75380171b89e9cb055f084035ef51fbd4c45d96","schema_version":"1.0","event_id":"sha256:77ae371d26cd1a9f9b3927d3f75380171b89e9cb055f084035ef51fbd4c45d96"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:46Y6XKQJSXM6V6USLTSKUBWMYM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Transmit Antenna Selection for Physical-Layer Network Coding Based on Euclidean Distance","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Barry Cardiff, Mark F. Flanagan, Vaibhav Kumar","submitted_at":"2017-09-13T17:51:39Z","abstract_excerpt":"Physical-layer network coding (PNC) is now well-known as a potential candidate for delay-sensitive and spectrally efficient communication applications, especially in two-way relay channels (TWRCs). In this paper, we present the error performance analysis of a multiple-input single-output (MISO) fixed network coding (FNC) system with two different transmit antenna selection (TAS) schemes. For the first scheme, where the antenna selection is performed based on the strongest channel, we derive a tight closed-form upper bound on the average symbol error rate (SER) with $M$-ary modulation and show "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.04450","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:35:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VkrKRhWWJypLr1ScKntfPY686BlYv0M/4O/mqibjySXl5kuHuos4hIkaHNm12nDaPiIvHdkHRBGtUx2XTROcBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T21:21:41.919679Z"},"content_sha256":"a87ff27eda34f1e79987ae085ffa61ae36a04c9de07cfb354c984c1f234f5f11","schema_version":"1.0","event_id":"sha256:a87ff27eda34f1e79987ae085ffa61ae36a04c9de07cfb354c984c1f234f5f11"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/46Y6XKQJSXM6V6USLTSKUBWMYM/bundle.json","state_url":"https://pith.science/pith/46Y6XKQJSXM6V6USLTSKUBWMYM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/46Y6XKQJSXM6V6USLTSKUBWMYM/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-11T21:21:41Z","links":{"resolver":"https://pith.science/pith/46Y6XKQJSXM6V6USLTSKUBWMYM","bundle":"https://pith.science/pith/46Y6XKQJSXM6V6USLTSKUBWMYM/bundle.json","state":"https://pith.science/pith/46Y6XKQJSXM6V6USLTSKUBWMYM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/46Y6XKQJSXM6V6USLTSKUBWMYM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:46Y6XKQJSXM6V6USLTSKUBWMYM","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":"69c0d18826d6febc1c23e5359bc6860a2137a8838938f1653400904e0577e74f","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2017-09-13T17:51:39Z","title_canon_sha256":"32ab3ce4faae0b6a2cae77bd354955d8942ad22ecc11a7c42895afd487e01e7c"},"schema_version":"1.0","source":{"id":"1709.04450","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.04450","created_at":"2026-05-18T00:35:14Z"},{"alias_kind":"arxiv_version","alias_value":"1709.04450v1","created_at":"2026-05-18T00:35:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.04450","created_at":"2026-05-18T00:35:14Z"},{"alias_kind":"pith_short_12","alias_value":"46Y6XKQJSXM6","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"46Y6XKQJSXM6V6US","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"46Y6XKQJ","created_at":"2026-05-18T12:30:58Z"}],"graph_snapshots":[{"event_id":"sha256:a87ff27eda34f1e79987ae085ffa61ae36a04c9de07cfb354c984c1f234f5f11","target":"graph","created_at":"2026-05-18T00:35:14Z","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":"Physical-layer network coding (PNC) is now well-known as a potential candidate for delay-sensitive and spectrally efficient communication applications, especially in two-way relay channels (TWRCs). In this paper, we present the error performance analysis of a multiple-input single-output (MISO) fixed network coding (FNC) system with two different transmit antenna selection (TAS) schemes. For the first scheme, where the antenna selection is performed based on the strongest channel, we derive a tight closed-form upper bound on the average symbol error rate (SER) with $M$-ary modulation and show ","authors_text":"Barry Cardiff, Mark F. Flanagan, Vaibhav Kumar","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2017-09-13T17:51:39Z","title":"Transmit Antenna Selection for Physical-Layer Network Coding Based on Euclidean Distance"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.04450","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":"sha256:77ae371d26cd1a9f9b3927d3f75380171b89e9cb055f084035ef51fbd4c45d96","target":"record","created_at":"2026-05-18T00:35:14Z","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":"69c0d18826d6febc1c23e5359bc6860a2137a8838938f1653400904e0577e74f","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2017-09-13T17:51:39Z","title_canon_sha256":"32ab3ce4faae0b6a2cae77bd354955d8942ad22ecc11a7c42895afd487e01e7c"},"schema_version":"1.0","source":{"id":"1709.04450","kind":"arxiv","version":1}},"canonical_sha256":"e7b1ebaa0995d9eafa925ce4aa06ccc33deddf8342e8954a7ed0b2e6223b03f0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e7b1ebaa0995d9eafa925ce4aa06ccc33deddf8342e8954a7ed0b2e6223b03f0","first_computed_at":"2026-05-18T00:35:14.327014Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:35:14.327014Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fqntcLPWXvF5j8v3UBuztdjvfeu6i30kswl1uZ+uPs3aWmQy1ovufR17XLGzYPtDtRjYhgvIHq/WeLlCToH9Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:35:14.327529Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.04450","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:77ae371d26cd1a9f9b3927d3f75380171b89e9cb055f084035ef51fbd4c45d96","sha256:a87ff27eda34f1e79987ae085ffa61ae36a04c9de07cfb354c984c1f234f5f11"],"state_sha256":"0820e5222dc57c0ec019a98d49d7e0628e8fb4576fcac6975d2a068d072e3e65"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5WKGwMhVNIgRKXBjnRvvBj19+r9nfnUReL3rfOChITgxQNeAs040FIG1o2k0Cn7AqFSocn/4W7/Wj2OjII6lAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T21:21:41.924204Z","bundle_sha256":"cf782989659835611a176ffad93758ef03eef5a52b8b4630d70f02046ca5b9ea"}}