{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:6C2XJ455JFUWNKKTGDHFOH6DD7","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":"1170c8e97788ed1637882b2fe663c003986e26dace58b7c07cb082c7b53428b5","cross_cats_sorted":["math.IT","stat.OT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2012-08-13T22:04:30Z","title_canon_sha256":"fbf7ff617b09884d30753f3e3d676f64b7b0c5ce7da90db7eac0d813ccc2e27d"},"schema_version":"1.0","source":{"id":"1208.2719","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.2719","created_at":"2026-05-18T03:48:47Z"},{"alias_kind":"arxiv_version","alias_value":"1208.2719v1","created_at":"2026-05-18T03:48:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.2719","created_at":"2026-05-18T03:48:47Z"},{"alias_kind":"pith_short_12","alias_value":"6C2XJ455JFUW","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_16","alias_value":"6C2XJ455JFUWNKKT","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_8","alias_value":"6C2XJ455","created_at":"2026-05-18T12:26:56Z"}],"graph_snapshots":[{"event_id":"sha256:b3cfbae0a311d4d383fb98106f48456b00abb7ee8ac667a0c88b85014fa2dc18","target":"graph","created_at":"2026-05-18T03:48:47Z","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":"Examining the effect of imperfect transmit antenna selection (TAS) caused by the feedback link errors on the performance of hybrid TAS/space-time block coding (STBC) with selection combining (SC) (i.e., joint transmit and receive antenna selection (TRAS)/STBC) and TAS/STBC (with receive maximal-ratio combining (MRC)-like combining structure) over Nakagami-m fading channels is the main objective of this paper. Under ideal channel estimation and delay-free feedback assumptions, statistical expressions and several performance metrics related to the post-processing signal-to-noise ratio (SNR) are ","authors_text":"Ahmet Faruk Coskun, Oguz Kucur","cross_cats":["math.IT","stat.OT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2012-08-13T22:04:30Z","title":"Unified Analysis of Transmit Antenna Selection/Space-Time Block Coding with Receive Selection and Combining over Nakagami-m Fading Channels in the Presence of Feedback Errors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.2719","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":"sha256:2828d2e26923def877d460505e33fb9248753745160a58dad157795a55dded74","target":"record","created_at":"2026-05-18T03:48:47Z","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":"1170c8e97788ed1637882b2fe663c003986e26dace58b7c07cb082c7b53428b5","cross_cats_sorted":["math.IT","stat.OT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2012-08-13T22:04:30Z","title_canon_sha256":"fbf7ff617b09884d30753f3e3d676f64b7b0c5ce7da90db7eac0d813ccc2e27d"},"schema_version":"1.0","source":{"id":"1208.2719","kind":"arxiv","version":1}},"canonical_sha256":"f0b574f3bd496966a95330ce571fc31fc9bc8d695e3c1013fc19d7151bcf9ff3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f0b574f3bd496966a95330ce571fc31fc9bc8d695e3c1013fc19d7151bcf9ff3","first_computed_at":"2026-05-18T03:48:47.557936Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:48:47.557936Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XAZSP4GT8u1HCg2/2c/cHkJKr97XpGv8QpBrXspjnrq01PVSsdg4B1fJsicBRC/PyFHJOm6u8OfslU1q0VRSAg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:48:47.558622Z","signed_message":"canonical_sha256_bytes"},"source_id":"1208.2719","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2828d2e26923def877d460505e33fb9248753745160a58dad157795a55dded74","sha256:b3cfbae0a311d4d383fb98106f48456b00abb7ee8ac667a0c88b85014fa2dc18"],"state_sha256":"b2140bf09d0d82540a9c089e0ad420b561fa4d496d1dfa4cbe7d6228036166ba"}